Lapsed Jun 4, 2025 on the fee record · High confidence
20-year base term ended Jun 15, 2025
Third maintenance fee unpaid; grace period ended.
Held by BlackBerry Limited
Filed Aug 3, 2012 as application 13/566,603 · Granted Jun 4, 2013
Base term, 20 years from filing
Today
Lapsed Jun 4, 2025
2005
2026
Clock starts
Jun 15, 2005
Jun 15, 2005
No longer in force
Jun 4, 2025
Jun 4, 2025
Granted
Jun 4, 2013
Jun 4, 2013
Term would have run to
Jun 15, 2025
Jun 15, 2025
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,311,819, to Jun 15, 2025. The term already ends on or before that date, so the cap shortened nothing.
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.
5
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 15, 2025: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Aug 3, 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 | Disclaimer resolved from the filed document (refs US 8,311,819) | resolves to Jun 15, 2025, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed Jun 4, 2025 | High confidence |
| Computed term end | The steps above, in order | Jun 4, 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 | Term ended Jun 2025 | Jun 2025 |
| US 8,457,961 | this patent 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 |
|---|---|---|---|
| Aug 31, 2012 Reel 28883, frame 230 | Hetherington, Phillip A.; Fallat, Mark | QNX Software Systems (Wavemakers), Inc. | Assignment of Assignor's Interest |
| Aug 31, 2012 Reel 28883, frame 357 | QNX Software Systems Co. | QNX Software Systems Limited | Change of Name |
| Aug 31, 2012 Reel 28885, frame 738 | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,311,819, ends no earlier than this term, so it caps nothing.
Citations
2
later US patents cite this one
That is below the median 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.