Term ends Dec 3, 2028 · High confidence

Computed 20-year base term

Held by Wi-LAN Inc.

Filed Apr 19, 2021 as application 17/234,287 · Granted Nov 21, 2023

Base term plus 81 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer

Today

20 years from filing

Term ends Dec 3, 2028

2008 2028

Clock starts
Dec 3, 2008

Term ends
Dec 3, 2028

Granted
Nov 21, 2023

base term Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

Capped

Terminal disclaimer

Resolved from the filed document, referencing US 10,348,463, US 10,985,881.

0 of 1

Maintenance fees paid

One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.

Family applications on record here

Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term runs 81 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 1 maintenance fees are paid so far. Confidence: High. from the record

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 filing	Clock starts Dec 3, 2008, when application 12/327,732, the earliest non-provisional in its chain, was filed (this one was filed Apr 19, 2021)	Dec 3, 2028	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+81 days, USPTO patent term adjustment record	Feb 22, 2029	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 10,348,463, US 10,985,881)	capped to Dec 3, 2028	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	0 of 1 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Dec 3, 2028	High confidence

This family

US 8,204,442	In force Jan 2031	Jan 2031
US 8,626,072	In force Dec 2028	Dec 2028
US 9,509,459	Lapsed on the fee record Nov 2020	Nov 2020
US 10,348,463	In force Dec 2028	Dec 2028
US 10,985,881	In force Dec 2028	Dec 2028
US 11,824,800	this patent Dec 2028	Dec 2028
US 12,785,873	In force Dec 2028	Dec 2028

The applications whose file history this site holds. The family may have others.

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.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

What's changing

Dec 2028

Term ends Dec 3, 2028. Maintenance fees still fall due before then

Note

The 81 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Disclaimer cap

This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,348,463, US 10,985,881.

Citations

later US patents cite this one

That is below the median of utility patents granted in 2023 in our data, the only group it is compared against. How we rank

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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