Term ends Dec 3, 2028 · High confidence
20-year base term ends Dec 3, 2028
Held by Wi-LAN Inc.
Filed Nov 20, 2023 as application 18/514,533 · Granted Nov 3, 2026
Base term plus 287 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2008
2028
Clock starts
Dec 3, 2008
Dec 3, 2008
Term ends
Dec 3, 2028
Dec 3, 2028
Granted
Nov 3, 2026
Nov 3, 2026
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
287
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, US 11,824,800.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
7
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 287 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. No maintenance fee can end this term early. 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 20, 2023) | Dec 3, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +287 days, USPTO patent term adjustment record | Sep 16, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,348,463, US 10,985,881, US 11,824,800) | capped to Dec 3, 2028 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No maintenance fee can end the term early | 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 | In force Dec 2028 | Dec 2028 |
| US 12,785,873 | this patent 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. No further fees fall due before then
Note
The 287 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, US 11,824,800.
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.