Term ended Jun 15, 2025 · High confidence
20-year base term ended Jun 15, 2025
USPTO later recorded it as expired for non-payment on Nov 10, 2025.
Held by BlackBerry Limited
Filed Apr 25, 2012 as application 13/455,886 · Granted Oct 8, 2013
Base term, 20 years from filing
Today
Term ended Jun 15, 2025
2005
2026
Clock starts
Jun 15, 2005
Jun 15, 2005
Term ended
Jun 15, 2025
Jun 15, 2025
Granted
Oct 8, 2013
Oct 8, 2013
base term
after the term ends
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
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.
5
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 is its 20-year base term, with no 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 Jun 15, 2005, when application 11/152,922, the earliest non-provisional in its chain, was filed (this one was filed Apr 25, 2012) | Jun 15, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 2 maintenance fees paid | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Nov 10, 2025, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | Jun 15, 2025 | High confidence |
This family
| US 8,170,875 | In force Oct 2028 | Oct 2028 |
| US 8,165,880 | In force Dec 2026 | Dec 2026 |
| US 8,311,819 | Term ended May 2026 | May 2026 |
| US 8,554,564 | this patent Jun 2025 | Jun 2025 |
| US 8,457,961 | Lapsed on the fee record Jun 2025 | Jun 2025 |
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 |
|---|---|---|---|
| May 3, 2012 Reel 28152, frame 179 | Hetherington, Phil; Escott, Alex | Harman Becker Automotive Systems - Wavemakers, Inc. | Assignment of Assignor's Interest |
| May 3, 2012 Reel 28152, frame 311 | QNX Software Systems Co. | QNX Software Systems Limited | Change of Name |
| May 3, 2012 Reel 28154, frame 739 | Harman Becker Automotive Systems - Wavemakers, Inc. | QNX Software Systems (Wavemakers), Inc. | Change of Name |
| May 3, 2012 Reel 28154, frame 820 | QNX Software Systems (Wavemakers), Inc. | QNX Software Systems Co. | Confirmatory Assignment |
| Apr 4, 2014 Reel 32607, frame 674 | 8758271 Canada Inc. | 2236008 Ontario Inc. | Assignment of Assignor's Interest |
| Apr 4, 2014 Reel 32607, frame 943 | QNX Software Systems Limited | 8758271 Canada Inc. | Assignment of Assignor's Interest |
| May 22, 2020 Reel 53313, frame 315 | 2236008 Ontario Inc. | 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.
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Alerts on its grants, lapses and transfers.
Citations
21
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.