Term ended Sep 1, 2026 · High confidence
20-year base term ended Sep 1, 2026
Held by Wi-Lan Inc.
Filed Aug 1, 2013 as application 13/957,173 · Granted May 3, 2016
USPTO first gave this application the number US 9,226,319 and withdrew it before it issued. That number now leads here.
Base term plus 138 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Sep 1, 2026
2006
2026
Clock starts
Sep 1, 2006
Sep 1, 2006
Term ended
Sep 1, 2026
Sep 1, 2026
Granted
May 3, 2016
May 3, 2016
base term
after the term ends
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
138
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 8,229,437.
2 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.
9
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 138 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Sep 1, 2006, when application 11/469,794, the earliest non-provisional in its chain, was filed (this one was filed Aug 1, 2013) | Sep 1, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +138 days, USPTO patent term adjustment record | Jan 17, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,229,437) | capped to Sep 1, 2026 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Sep 1, 2026 | High confidence |
This family
| US 8,259,688 | In force May 2030 | May 2030 |
| US 8,229,437 | Term ended Sep 2026 | Sep 2026 |
| US 8,532,052 | Term ended Sep 2026 | Sep 2026 |
| US 9,332,572 | this patent Sep 2026 | Sep 2026 |
| US 9,226,320 | Lapsed on the fee record Dec 2023 | Dec 2023 |
| US 9,380,607 | Term ended Sep 2026 | Sep 2026 |
| US 10,805,131 | Term ended Sep 2026 | Sep 2026 |
| US 10,985,956 | Term ended Sep 2026 | Sep 2026 |
8 of 9 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Nov 24, 2015 Reel 37134, frame 441 | Bourlas, Yair; Newham, Adam E.; Wang, Lei; Gummadi, Srikanth | Nextwave Broadband Inc. | Assignment of Assignor's Interest |
| Nov 24, 2015 Reel 37134, frame 911 | Nextwave Broadband Inc. | Wi-Lan Inc. | Assignment of Assignor's Interest |
| Jun 13, 2017 Reel 42694, frame 184 | Wi-Lan Inc.; Quarterhill Inc. | Quarterhill Inc. | Merger and Change of Name |
| Jun 14, 2017 Reel 42707, frame 179 | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 138 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 8,229,437.
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2016 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.