Term ends Apr 4, 2029 · High confidence
20-year base term ends Feb 25, 2028
Held by Google LLC
Filed Feb 21, 2018 as application 15/901,466 · Granted Jan 12, 2021
Base term plus 404 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Feb 25, 2008
Feb 25, 2008
Term ends
Apr 4, 2029
Apr 4, 2029
Granted
Jan 12, 2021
Jan 12, 2021
base term
patent term adjustment
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
404
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
4
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 404 days past its 20-year base term on 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 Feb 25, 2008, when application 12/036,982, the earliest non-provisional in its chain, was filed (this one was filed Feb 21, 2018) | Feb 25, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +404 days, USPTO patent term adjustment record | Apr 4, 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 | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 4, 2029 | High confidence |
This family
| US 9,911,126 | In force Jun 2033 | Jun 2033 |
| Application PCT/US2008/059724 | PCT application no patent term | no patent term |
| US 10,891,633 | this patent Apr 2029 | Apr 2029 |
| US 11,816,683 | 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 |
|---|---|---|---|
| Feb 22, 2018 Reel 44999, frame 932 | Morten, Glenn A.; Baker, Brian A. | Widevine Technologies, Inc. | Assignment of Assignor's Interest |
| Feb 22, 2018 Reel 44999, frame 935 | Widevine Technologies, Inc. | Google Inc. | Assignment of Assignor's Interest |
| Feb 22, 2018 Reel 45405, frame 471 | Google Inc. | Google LLC | Change of Name |
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
Apr 2029
Term ends Apr 4, 2029. Maintenance fees still fall due before then
Note
The 404 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2021 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.