Term ends Dec 3, 2028 · High confidence

Computed 20-year base term

Held by Wi-Lan Inc.

Filed Nov 28, 2016 as application 15/362,564 · Granted Jul 9, 2019

Base term, 20 years from filing

Today

20 years from filing

Term ends Dec 3, 2028

2008 2028

Clock starts
Dec 3, 2008

Term ends
Dec 3, 2028

Granted
Jul 9, 2019

base term fee events 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

None

Term adjustment

No prosecution delay on this record.

None

Terminal disclaimer

No disclaimer on this record.

1 of 2

Maintenance fees paid

Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows 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 is its 20-year base term, with no adjustment for prosecution delay. 1 of 2 maintenance fees is 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 Nov 28, 2016)	Dec 3, 2028	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	None on file	no change	High confidence
Terminal disclaimer cap	None on record	no cap applied	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	1 of 2 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	this patent Dec 2028	Dec 2028
US 10,985,881	In force Dec 2028	Dec 2028
US 11,824,800	In force 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.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.

Recorded	Assignor	Assignee	Conveyance
Jun 15, 2017 Reel 42725, frame 362	Wi-Lan Inc.; Quarterhill Inc.	Quarterhill Inc.	Merger and Change of Name
Jun 20, 2017 Reel 42756, frame 914	Quarterhill Inc.	Wi-Lan Inc.	Assignment of Assignor's Interest

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

Citations

later US patent cites this one

That is below the median of utility patents granted in 2019 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.

Intercell Interference Mitigation