Term ends Sep 30, 2028 · High confidence
20-year base term ends Aug 24, 2027
Held by BlackBerry Limited
Filed Aug 24, 2007 as application 11/844,883 · Granted Sep 25, 2012
Base term plus 403 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Aug 24, 2007
Aug 24, 2007
Term ends
Sep 30, 2028
Sep 30, 2028
Granted
Sep 25, 2012
Sep 25, 2012
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
403
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
This patent's term runs 403 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Aug 24, 2007, when this application, 11/844,883, was filed | Aug 24, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +403 days, USPTO patent term adjustment record | Sep 30, 2028 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 30, 2028 | High confidence |
This family
| US 8,275,764 | this patent Sep 2028 | Sep 2028 |
| US 8,775,415 | In force Sep 2027 | Sep 2027 |
| US 9,088,809 | In force Aug 2027 | Aug 2027 |
| US 9,769,528 | In force Aug 2027 | Aug 2027 |
| US 10,798,452 | In force Aug 2027 | Aug 2027 |
| US 11,936,953 | In force Aug 2027 | Aug 2027 |
| Application 18/428,229 | Abandoned not computed | not computed |
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 5, 2008 Reel 20464, frame 663 | Jeon, Joon-hee; Dureau, Vincent; Benting, Steve Dale; Lin, Zhenhai; Miller, Michael W.; Patel, Manish G. | Google Inc. | Assignment of Assignor's Interest |
| Oct 2, 2017 Reel 44101, frame 405 | Google Inc. | Google LLC | Change of Name |
| Jul 30, 2026 Reel 75465, frame 538 | Google LLC | BlackBerry Limited | 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
Sep 2028
Term ends Sep 30, 2028. No further fees fall due before then
Note
The 403 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
358
later US patents cite this one
That is top 1% of utility patents granted in 2012 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.