Patent Maintenance Fees: Costs, Schedule & What Happens If You Don’t Pay
Key Takeaways
U.S. utility patents require maintenance fee payments at 3.5, 7.5, and 11.5 years after grant.
Fee amounts scale with both entity size and time. In the 3.5-year window, large entities pay $2,150, small entities pay $860, and micro entities pay $430. By the 11.5-year window, those figures climb to $8,280, $3,312, and $1,656 respectively.
Design and plant patents are exempt from maintenance fees, while utility patents require ongoing payments.
A 6-month grace period applies after each deadline, but late payment incurs a surcharge and the risk of permanent lapse. Once a patent lapses for non-payment, the invention enters the public domain, and that protection is gone forever.
At Rabbit Product Design, we believe the budget spent on maintenance fees and filing costs is almost always better invested in building and launching a product that generates real revenue. Our end-to-end development process is designed to move your invention from idea to market as efficiently as possible, so your commercial success makes any patent protection you pursue genuinely worth maintaining.
Your Patent Is Not Automatically Protected Forever
Most patent attorneys and product development firms treat filing as the primary milestone. At Rabbit Product Design, the approach is different: patents are a research consideration within a broader product strategy, not the end goal. Still, if you hold or plan to file a utility patent, knowing what it costs to keep it active matters.
U.S. utility patents require three maintenance payments to remain enforceable: at 3.5, 7.5, and 11.5 years after the grant date. Miss a deadline and the 6-month grace period that follows, and the patent lapses permanently and enters the public domain. The total lifetime maintenance costs reach approximately $14,470 for large entities, $5,788 for small entities, and $2,894 for micro entities. Design and plant patents are fully exempt.
The sections below cover the complete fee schedule, grace period rules, and the consequences of missing a payment.
The USPTO Patent Maintenance Fee Schedule
The USPTO structures maintenance fees around three fixed deadlines, each tied to the patent's original grant date. Missing any one of these windows, including the grace period, means permanent loss of protection unless you successfully petition for reinstatement.
3.5-Year Deadline: First Payment Window
The first maintenance fee is due 3.5 years after the patent grant date. This is the smallest of the three fees, but it catches many inventors off guard because it arrives relatively soon after the excitement of receiving a patent.
Your first maintenance fee window is 3.5 years, and the second is 7.5 years.
7.5-Year Deadline: Second Payment Window
The second maintenance fee comes due at 7.5 years post-grant. By this stage, the fee has increased compared to the first payment, reflecting the USPTO's tiered pricing structure.
Payment can be made up to 6 months early (from the 7-year mark), and a 6-month grace period follows the due date with a surcharge for late payment.
11.5-Year Deadline: Final Payment Window
The third and final maintenance fee is due at 11.5 years after the grant. This is the highest fee of the three payment stages. Paying this fee keeps the patent in force through the end of its 20-year term from the application filing date.
Grace Periods: How Much Extra Time You Actually Have
At each of the three deadlines, the USPTO provides a 6-month grace period for late payment. However, paying during the grace period is not free, and a surcharge is added to the standard maintenance fee.
If the fee and surcharge are still unpaid by the end of that 6-month window, the patent expires and enters the public domain. At that point, your competitors can legally use your invention without restriction.
USPTO Maintenance Fee Costs by Entity Type
USPTO maintenance fees vary based on the size and type of entity.
The USPTO divides patent applicants into three entity categories: large entity, small entity, and micro entity, each paying a different rate. Small entities receive a 60% discount, and micro entities receive an 80% discount on most patent fees.
All figures below reflect the maintenance fee schedule effective January 19, 2025, as published on the official USPTO fee schedule.
3.5-Year Maintenance Fee: The first maintenance payment is due 3.5 years after the patent grant date. Large entities pay $2,150, small entities pay $860, and micro entities pay $430.
7.5-Year Maintenance Fee: The second payment falls due at 7.5 years after the grant. Large entities pay $4,040, small entities pay $1,616, and micro entities pay $808.
11.5-Year Maintenance Fee: The third and final maintenance payment is due at 11.5 years after the grant and is by far the largest. The 11.5-year maintenance fee for a large entity is $8,280, while small entities pay $3,312 and micro entities pay $1,656.
Total Lifetime Maintenance Cost: Across all three payments, the full maintenance cost over a utility patent's 20-year term is approximately $14,470 for large entities, $5,788 for small entities, and $2,894 for micro entities.
Late Payment Surcharge: A 6-month grace period applies to each deadline, but late payment incurs an immediate surcharge. Late maintenance fee payments within six months of the due date incur a $540 penalty for large entities, $216 for small entities, and $108 for micro entities.
Who Qualifies for Reduced Rates
To qualify as a micro entity under the gross income basis, applicants must not have been named on more than four previously filed U.S. nonprovisional patent applications. They must not exceed the maximum qualifying gross income threshold, which, as of September 9, 2025, is $251,190.
Small entity status applies to individuals, small businesses with fewer than 500 employees (including affiliates), and nonprofit organizations, provided no rights in the invention have been assigned or licensed to any entity that does not itself qualify as a small entity.
Design and plant patents have no maintenance fees. Always verify current figures directly at the USPTO fee schedule before filing or paying, as fees are subject to periodic revision.
What Happens When You Miss a Patent Payment
Missing a maintenance fee deadline has immediate and potentially permanent consequences for your patent rights. The moment your grace period expires without payment, your patent lapses and protection ends.
Your Patent Lapses & Enters the Public Domain
When a patent lapses due to non-payment, it enters the public domain. That means the invention, the claims, and all the intellectual property you spent time and money protecting become freely available to anyone.
Your competitors, manufacturers, and even direct market rivals can use it without paying you a cent or facing any legal consequences.
Competitors Can Legally Use Your Invention
Once the patent is in the public domain, there is no legal mechanism to stop a competitor from manufacturing, selling, or licensing the same invention you created. The exclusivity you paid to establish evaporates entirely.
The damage is not always immediate. Sometimes it takes months for a competitor to find out that a patent has lapsed, but in industries where IP monitoring is standard practice, that discovery can happen quickly.
Late Reinstatement: Is It Possible to Recover a Lapsed Patent
If you miss the maintenance fee deadline but are still within the 6-month grace period, recovery is straightforward. All you have to do is pay the maintenance fee plus the applicable surcharge, and your patent remains in force.
Beyond the grace period, reinstatement becomes significantly more difficult. The USPTO allows patent owners to petition for reinstatement after expiration, provided the delay in payment was unintentional.
You must file a formal petition, pay all outstanding maintenance fees, pay the applicable surcharges, and pay the petition fee itself. The USPTO reviews the petition and has the authority to deny it.
The reinstatement process is a last resort with real risk of denial. If the USPTO determines that the delay was intentional, or that the petition is incomplete, the patent remains expired. At that point, your only remaining option may be legal action, which is costly and rarely successful.
Why Rabbit Product Design Is The Smartest Path Forward For Inventors
Rabbit Product Design is led by senior engineers averaging 27 years of experience.
Patent maintenance fees are a compounding, long-term obligation. Knowing the schedule, the costs by entity type, and the consequences of a lapse gives you what you need to decide whether maintaining a patent is genuinely worth it for your product and business. For most inventors, the more pressing question is whether the product behind the patent is being built at all.
At Rabbit Product Design, we work with inventors to move ideas through feasibility, engineering, and manufacturing into products that actually reach the market. If you are ready to build something real, we can walk you through how to start.
Start your product journey now.
Frequently Asked Questions (FAQs)
Do maintenance fees apply to all types of patents?
No. Maintenance fees only apply to utility patents and reissue utility patents granted on applications filed on or after December 12, 1980.
Design and plant patents are exempt from maintenance fees and remain in force for their full statutory term without any additional payments.
Can someone else pay my patent maintenance fees on my behalf?
Yes. The USPTO allows any person or entity to pay a maintenance fee on behalf of the patent owner.
This is common in situations where a company has licensed the patent and has a vested interest in keeping it active, or where a patent attorney or management service is handling the portfolio on the owner's behalf.
Can a lapsed patent be reinstated after the grace period ends?
Yes, but it is neither simple nor guaranteed. Once a patent has lapsed beyond the grace period, the patent owner must file a petition for unintentional delay with the USPTO.
The petition must include all unpaid maintenance fees, applicable surcharges, and the petition fee itself. The USPTO reviews the petition and may deny it if the evidence does not sufficiently demonstrate that the delay was unintentional.
Do patent maintenance fees apply to international patents?
U.S. maintenance fees only apply to patents granted by the USPTO. However, most international patent systems have their own versions of renewal or annuity fees that must be paid to maintain patent protection in each country where protection is sought.
Under the Patent Cooperation Treaty (PCT), filing an international application gives you a pathway to pursue patent protection in over 150 countries, but each national or regional patent office has its own fee schedule and renewal deadlines. There is no single international maintenance fee that covers all jurisdictions simultaneously.
How does Rabbit Product Design approach patent risk for new products?
At Rabbit Product Design, we approach patent risk as one strategic consideration within a broader product development plan, not as the most important step you should take. Our structured development process moves your product from feasibility to manufacturing setup and market launch.
This creates real commercial momentum and a defensible market position that makes any intellectual property protection far more valuable than a filing made in isolation before the product exists.
*Disclaimer: This content is for educational purposes only and not financial, legal, or business advice. Figures vary by circumstance. Consult qualified professionals before making decisions. For personalized guidance, contact Rabbit Product Design.
