A US trademark can carry seven distinct statutory clocks. Each is triggered by a different event, each is computed from different data, and none of them is announced in advance by the USPTO in any way you can rely on.
The seven
- Office action response — three months from issuance for most applications since December 2022, six for Madrid.
- Statement of use — six months from the notice of allowance, extendable five times to thirty-six months.
- Section 8 declaration — between the fifth and sixth anniversary of registration.
- Section 9 renewal — between the ninth and tenth anniversary, and every ten years after.
- Section 15 declaration — optional, available after five years of continuous use.
- Section 71 affidavit — the Madrid equivalent of Section 8.
- Petition to revive — two months from a notice of abandonment.
Plus answers to oppositions, which live in the proceeding record rather than the register.
All of them in one table
What triggers each clock, how long it runs and whether a grace period exists: the deadline calendar.
Why a spreadsheet struggles
Not because the arithmetic is hard. Registration date plus six years is not hard. It is everything around the arithmetic:
- Grace periods that extend a deadline without removing it
- Filing basis deciding whether a response period is three months or six
- Madrid registrations maintaining under a different section on a different anniversary
- Whether a filing has already been made, which lives in prosecution history
- Extension counts that determine how much runway is actually left
A spreadsheet holds what someone typed into it on the day the mark was docketed. It does not know that an office action issued last Tuesday.
Courtesy reminders are not a safety net
The USPTO sends reminders for maintenance filings and states explicitly that failure to receive one does not excuse a missed deadline. They go to the correspondent of record — so a change of firm, a departed attorney or a dead mailbox ends them silently, and the registration is the thing that notices.
Deriving deadlines from the register
Every clock above is computable from data the USPTO publishes: the status code, the status date, the registration date, the abandonment date, the filing basis, the section info and the prosecution history. Nothing has to be typed in, and nothing depends on someone remembering to update a row.
That is how Sealvo builds a docket — and why it can show a firm its own deadlines before that firm has entered a single mark.