Lapsed Oct 1, 2025 on the fee record · High confidence
20-year base term ends Jan 26, 2027
Third maintenance fee unpaid; grace period ended.
Held by Wi-Lan Inc.
Filed Jan 26, 2007 as application 11/627,897 · Granted Oct 1, 2013
Base term, 20 years from filing, plus 862 days of patent term adjustment (USPTO delay)
Today
Lapsed Oct 1, 2025
2007
2029
Clock starts
Jan 26, 2007
Jan 26, 2007
No longer in force
Oct 1, 2025
Oct 1, 2025
Granted
Oct 1, 2013
Oct 1, 2013
Term would have run to
Jun 6, 2029
Jun 6, 2029
base term
patent term adjustment
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
862
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
7
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jun 6, 2029: its 20-year base term plus 862 days of term adjustment for prosecution delay. 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 Jan 26, 2007, when this application, 11/627,897, was filed | Jan 26, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +862 days, USPTO patent term adjustment record | Jun 6, 2029 | 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 | 2 of 3 maintenance fees paid | lapsed Oct 1, 2025 | High confidence |
| Computed term end | The steps above, in order | Oct 1, 2025 | High confidence |
This family
| US 8,548,520 | this patent Oct 2025 | Oct 2025 |
| US 9,723,529 | In force Jan 2027 | Jan 2027 |
| US 10,231,161 | In force Jan 2027 | Jan 2027 |
| US 10,694,440 | In force Jan 2027 | Jan 2027 |
| US 11,134,426 | In force Jan 2027 | Jan 2027 |
| US 11,743,792 | In force Jan 2027 | Jan 2027 |
| US 12,149,999 | In force Jan 2027 | Jan 2027 |
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 |
|---|---|---|---|
| Mar 23, 2007 Reel 19057, frame 658 | Connors, Dennis P.; Marsh, Gene W. | Nextwave Broadband Inc. | Assignment of Assignor's Interest |
| Aug 12, 2009 Reel 23092, frame 245 | Nextwave Broadband Inc. | Wi-Lan Inc. | Assignment of Assignor's Interest |
| Jun 20, 2017 Reel 42914, frame 596 | Wi-Lan Inc.; Quarterhill Inc. | Quarterhill Inc. | Merger and Change of Name |
| Jul 12, 2017 Reel 43168, frame 323 | 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
Note
The 862 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
35
later US patents cite this one
That is top 25% of utility patents granted in 2013 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.