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Grommet and Racket

US 12,594,468 In force
OverviewSources & methods

Term ends Feb 9, 2042 · High confidence

Held by Yonex Co., Ltd.
Filed Aug 31, 2021 as application 17/435,225 · Granted Apr 7, 2026
Base term plus 705 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2020 2042
Clock starts
Mar 6, 2020
Term ends
Feb 9, 2042
Granted
Apr 7, 2026
base term patent term adjustment Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
705
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
Step Input Date after this step Confidence
Base term, 20 years from filingClock starts Mar 6, 2020, when the earliest non-provisional application in its chain was filed (this one was filed Aug 31, 2021)Mar 6, 2040High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+705 days, USPTO patent term adjustment recordFeb 9, 2042High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderFeb 9, 2042High confidence

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

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