An overseas patent owner may discover a missed payment during a licensing discussion, an acquisition or a change of service provider. The first step is to establish the patent’s official payment status and identify whether the ordinary payment window, grace period or reinstatement procedure applies.
Do not rely solely on an invoice marked “paid” or an email instructing an agent to act. Match the patent number, payment record and relevant deadline before deciding what to do next.
U.S. utility patents generally require maintenance fees. Design and plant patents do not require these periodic payments.
Start with the patent type, grant date and official maintenance-fee history. The USPTO’s patent maintenance guidance provides an entry point for checking the applicable requirements.
For utility patents subject to maintenance fees, the standard payment schedule is:
First payment: the ordinary window runs from 3 to 3½ years after grant.
Second payment: the ordinary window runs from 7 to 7½ years after grant.
Third payment: the ordinary window runs from 11 to 11½ years after grant.
Each ordinary deadline is followed by a six-month grace period during which payment requires a surcharge. Failure to make the required payment results in expiration at the end of that period, subject to applicable deadline rules.
The USPTO explains these windows and weekend or federal-holiday adjustments in MPEP § 2506.
For internal records, keep the ordinary deadline and grace-period deadline in separate fields. A single reminder labelled “renewal” can leave the team uncertain about which deadline has passed.
Prepare a chronology showing who was responsible for payment, what instructions were issued and when the missed payment was discovered.
Useful records include:
Engagement letters and service-provider handover instructions.
Payment requests, approvals and receipts.
Reminder emails and docket reports.
Correspondence explaining decisions to maintain or discontinue the patent.
Records of action taken after discovery.
For example, a company changing providers should check whether the receiving provider expressly accepted responsibility for granted-patent maintenance. An instruction covering pending applications may leave that responsibility unresolved.
Preserve the original documents rather than replacing them with a brief retrospective explanation.
Under 37 CFR § 1.378, a petition to accept delayed payment generally requires the maintenance fee, petition fee and a statement that the delay was unintentional.
The entire delay matters, including the period after discovery. A deliberate decision to allow expiration does not become unintentional merely because commercial circumstances later change.
USPTO guidance also requires additional facts and circumstances when the delay exceeds two years from nonpayment. See MPEP § 2590.
Before treating the patent as reinstated, obtain the USPTO’s decision and verify the resulting status. Keep those records with the payment documentation.
Acceptance of delayed payment generally treats the patent as though it had not expired, subject to 35 U.S.C. § 41(c)(2).
That provision protects specified third-party activities during the interval between the grace period’s end and acceptance of the delayed fee. Courts may also permit certain continued activities to protect investments or business commenced during that interval.
An enforcement review should therefore examine the timing and nature of the other party’s activities. Reinstatement alone does not resolve every question about available remedies.
Other restrictions can also affect a patent’s useful life. Our guide to terminal disclaimers discusses a separate issue to check during portfolio reviews.
When changing providers, prepare a schedule identifying each patent, its next deadline, the responsible payer and the approval contact.
Ask the receiving provider to acknowledge the obligations it accepts. After payment, reconcile the receipt against the correct patent and official record.
This gives the business a documented chain from instruction to accepted payment.
No. The standard utility-patent schedule has three maintenance payments, rather than annual payments.
A six-month grace period follows the ordinary deadline, during which payment requires a surcharge.
No. The petition must satisfy the applicable requirements, including the unintentional-delay standard.
Yes. Counsel should assess the statutory protections for intervening activities before advising on enforcement.
Prepare the patent number, payment history, provider instructions and a dated account of the delay.
Confirm payment status and responsibility before a portfolio handover or commercial transaction. For enquiries concerning U.S. patents, visit our patent services page and provide the patent number and relevant correspondence.
Any reinstatement or enforcement assessment should involve an appropriately qualified U.S. patent practitioner.
Fields marked * are required. We usually reply within one business day.
We will reply by email within one business day. This window will close automatically.
