A non-provisional patent application is the real one.
It gets examined. It requires claims. It can become a patent. And it starts the twenty-year clock.
A provisional does none of those things. It buys a date and expires.
Which makes the non-provisional the point of commitment — the moment cost, term and scope all become real.
Against a provisional
| Provisional | Non-provisional | |
|---|---|---|
| Examined | Never | Yes, substantively |
| Becomes a patent | No | Yes |
| Claims required | No | Yes, at least one |
| Starts the 20-year term | No | Yes |
| Establishes priority | Yes, 12 months | Yes |
| Publishes | No | At 18 months |
| Expires | 12 months | — |
| USPTO fee, micro entity | ~$60 | ~$400 |
| Drafting cost | $1,500–$4,000 | $5,000–$15,000 |
The term split is the whole reason provisionals exist. Priority without consuming term buys up to twelve extra months of effective protection.
Filing directly, without a provisional
| Situation | Direct filing suits |
|---|---|
| The invention is fully developed | Yes |
| Budget available now | Yes |
| A competitor is close | Yes — priority sooner |
| Still testing the market | No — use a provisional |
| Design still changing | No |
Direct filing starts the term immediately, which costs up to twelve months of effective protection compared with the provisional route.
The twelve-month deadline
| Runs from | The provisional's filing date |
| Also governs | Foreign filing under the Paris Convention |
| Extension available | No |
| Missing it | Priority date lost entirely |
| Multiple provisionals | Deadline runs from the first |
Nothing extends this. It is among the hardest deadlines in the system, and the provisional simply expires.
Serial provisionals do not reset it. Filing a second provisional adds its own date for its own content; the twelve months still runs from the first.
The claim is the point
| The description | Explains the invention |
| The claims | Define what you own |
| Infringement decided against | The claims |
| Validity decided against | The claims |
| Narrow claims | Easily designed around |
Everything else in the application exists to support the claims. See patent claim.
What it must contain
| Section | Purpose |
|---|---|
| Title | Descriptive, not your product name |
| Cross-references | Priority claims |
| Background | The technical problem |
| Summary | The invention in brief |
| Brief description of drawings | One line per figure |
| Detailed description | Enables it; supports every claim |
| Claims | What you own |
| Abstract | 150 words or fewer |
| Also filed | |
|---|---|
| Drawings | Where necessary to understand |
| Application Data Sheet | Bibliographic and priority data |
| Declaration | Inventor statements |
| IDS | Duty of candour |
| Fees, entity certification | — |
See non-provisional patent application example for each section worked through.
Nothing can be added after filing
| If prior art appears against | You need already in the description |
|---|---|
| The specific mechanism | An alternative mechanism |
| A stated value | A range with sub-ranges |
| The material | Alternative materials named |
| The arrangement | Alternative geometries |
| The whole combination | A narrower embodiment |
Every row is amendment room that exists or does not. Claims can be narrowed within the disclosure and never extended beyond it.
This is why drafting is where the money should go. A cheap application that issues with claims any competitor designs around has spent the fees and the years for nothing.
Priority is only as good as the disclosure
| Provisional contained | Non-provisional claims | Priority? |
|---|---|---|
| A spring-biased mechanism | Spring-biased | Yes |
| A spring-biased mechanism | Any biasing mechanism | Probably not |
| A single example | A broad genus | Frequently not |
| A two-page sketch | Anything specific | Doubtful |
A thin provisional fails exactly when tested. The claims fall back to the non-provisional's date, and prior art published in the gap becomes citable.
Draft the provisional as though it were the real thing, because for priority purposes it is. See patent priority date.
Responding to an office action
| Option | Effect |
|---|---|
| Amend the claims | Surrenders scope permanently |
| Argue without amending | Preserves scope; may not succeed |
| Both | Common |
| Examiner interview | Free, and often decisive |
| Request continued examination | Extends prosecution, with fees |
| Appeal to the PTAB | Where the examiner will not move |
| Abandon | Ends it |
Examiner interviews are the most underused free resource in prosecution. A half-hour conversation frequently resolves what two written rounds do not, and there is no official fee.
Amendments made to overcome prior art bar equivalents in the surrendered range. Arguing without amending preserves more. See prosecution history estoppel.
What examination looks like
| Event | Timing (FY2024) |
|---|---|
| Filing receipt | Weeks |
| Queue | ~12–20 months |
| Publication | 18 months from earliest priority |
| First office action | 19.9 months average |
| Response | 3 months, extendable to 6 |
| Disposal | 26.3 months average |
| Rejection | Frequency |
|---|---|
| §103 obviousness | Most common |
| §102 novelty | Common |
| §112 support, clarity | Common |
| §101 eligibility | Software and business methods |
At least one rejection is normal. The averages include early abandonments, so applications that actually grant typically take longer.
Every amendment surrenders scope permanently through prosecution history estoppel. See prosecution history estoppel.
Restriction requirements
| Issued when | The examiner considers the claims cover distinct inventions |
| You must | Elect one for examination |
| Non-elected claims | Survive only in a divisional |
| Deadline for the divisional | Before the parent issues |
| Effect on term | Divisional runs from the earliest parent |
Restriction requirements are common in applications claiming both an apparatus and a method of making it, or several embodiments.
Track the divisional deadline. Non-elected claims are lost permanently if the parent issues with nothing pending.
What "non-provisional" actually means
| The name | Simply means not a provisional |
| Also called | A utility application, or just a patent application |
| Design applications | Not called non-provisional — separate category |
| Plant applications | Separate category |
| The distinction | Exists only because provisionals exist |
The term is a US artefact. Most countries have no provisional equivalent and simply call it a patent application.
Design and plant applications are separate categories with their own rules, not non-provisionals. See patent of design.
Continuations, divisionals and CIPs
| Type | Adds new matter | Priority |
|---|---|---|
| Continuation | No | Parent's |
| Divisional | No | Parent's |
| CIP | Yes | Split by matter |
All expire with the parent. None adds term. See patent family.
Costs
| Item | Large | Small (40%) | Micro (20%) |
|---|---|---|---|
| Filing, search, examination | ~$2,000 | ~$800 | ~$400 |
| Drafting | $5,000–$15,000 | Same | Same |
| Office action responses (2) | $2,400–$8,000 | Same | Same |
| Issue fee | ~$1,200 | ~$480 | ~$240 |
| Maintenance, lifetime | $14,470 | $5,788 | $2,894 |
Official fees scale with entity status; professional fees do not. Micro entity status cuts USPTO fees by 80% for the whole life. See small entity status.
A registered patent agent charges less than an attorney for the same drafting and prosecution work, holding the same USPTO registration. See patent attorneys.
Prosecution timeline in practice
| Round | Typical |
|---|---|
| First office action | Rejection, usually §103 |
| Response | Amend, argue, or both |
| Second action | Frequently final |
| After final | RCE, appeal, or amend narrowly |
| Allowance | Whenever the examiner is satisfied |
"Final" does not mean the end. A request for continued examination reopens prosecution, with fees.
Examiner interviews are free and frequently decisive at exactly this point.
The continuation decision
| Window | While the parent is pending |
| Closes | When the parent issues with nothing pending |
| Reminder | None |
| Reopenable | No |
| What it buys | Claims aimed at what competitors actually built |
| What it does not | Add term — it expires with the parent |
This is the most commonly missed decision in a patent's life. The parent grants, which feels like success, and the option vanishes at the same moment.
What the disclosure must carry
| If prior art appears against | You need already described |
|---|---|
| The specific mechanism | An alternative mechanism |
| A stated value | A range with sub-ranges |
| The material | Alternative materials |
| The whole combination | A narrower embodiment |
Each row is amendment room that exists on the filing date or never. This is the practical meaning of the new matter prohibition, and it is why drafting cost is not where to economise. See how to write a patent application.
Publication timing relative to examination
| Event | Typical order |
|---|---|
| Filing | Day 0 |
| Publication | 18 months from priority |
| First office action | ~19.9 months from filing |
| Consequence | Publication frequently comes first |
Your application becomes public before an examiner has said anything about it.
Term runs from here
| Input | Effect |
|---|---|
| Non-provisional filing date | Term starts |
| Provisional filing date | Does not start it |
| Continuation | Runs from the earliest parent |
| Patent Term Adjustment | Adds days for USPTO delay |
| Terminal disclaimer | Caps the term |
Continuations expire with the parent. A continuation filed in 2024 from a 2016 non-provisional expires in 2036, not 2044.
Publication happens regardless
| Timing | 18 months from earliest priority |
| Depends on examination | No |
| Ends trade secret protection | Permanently |
| Non-publication request | Only if not filing abroad |
| If abandoned afterwards | Publication stands |
Filing commits you to disclosure. Anything you want to keep secret must be kept out of the application entirely, and that decision cannot be revisited. See patent application publication.
Worked example: two timelines
| Direct non-provisional | Provisional first | |
|---|---|---|
| Mar 2025 | — | Provisional filed, $60 |
| Mar 2025 | Non-provisional filed | — |
| Feb 2026 | — | Non-provisional filed |
| Term ends | Mar 2045 | Feb 2046 |
| Protected from | Mar 2025 | Mar 2025 |
| Effective protection | 20 years | 20.9 years |
| Cost deferred | None | ~11 months of drafting spend |
Eleven extra months of protection for about $60 in fees, plus the cost of drafting the provisional properly.
The deferral matters as much as the term. Twelve months to test the market before committing $10,000 or more.
Before you file it
| Check | Cost |
|---|---|
| Free prior art search | $0 |
| Does the provisional support these claims? | $0 |
| Have you described alternatives and ranges? | $0 |
| Entity status | $0 |
| Any public disclosure to account for? | $0 |
| Foreign filing decision, same deadline | $0 |
The provisional support question is the one most often skipped, and it is the one that surfaces years later in a validity challenge.
Entity status at each payment
| Event | Effect |
|---|---|
| Headcount passes 500 | Small entity ends |
| Licence to a large entity | Small entity ends |
| Fifth non-provisional filed | Micro entity ends |
| Income rises | Micro entity ends |
Recheck at every payment, not just at filing. See small entity status.
What most non-provisionals become
| Ipiry Patent Survival Curve v1.0 | Rate |
|---|---|
| Survive the 3.5-year fee (2022 cohort) | 85.8% |
| Survive the 7.5-year fee (2018 cohort) | 64.6% |
| Reach full term (2014 cohort) | 41.4% |
| Abandoned before full term | 58.6% |
Computed from 27,273,654 USPTO maintenance fee records covering 8,262,336 US utility patents — see the patent survival curve.
That is the base rate after grant, and many applications never grant at all. Search before filing is what keeps this from being an expensive lesson.
What you own at the end
| A granted patent | A right to exclude |
| Not | Permission to practise |
| Term | 20 years from this filing |
| Ongoing cost | Three maintenance fees |
| Enforceable | In the US only |
A patent is not clearance. Freedom to operate is a separate question about other people's claims. See fto meaning.
Non-provisional patent: the checklist
- This is the application that counts. Examined, claimed, and it becomes a patent.
- Diarise twelve months from any provisional. No extension exists.
- Foreign filing runs on the same clock.
- Write every alternative and range in. Nothing can be added later.
- Check the provisional actually supports the claims you are filing.
- Structure claims at several levels, within 20 total and 3 independent.
- Check micro or small entity eligibility before paying.
- File the IDS and supplement it.
- Expect at least one rejection. §103 is the most common.
- Decide on a continuation at notice of allowance. Nothing will remind you.