Also listed on Slipstream Data Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 10, 2030 · High confidence
20-year base term ends Jun 4, 2028
Held by Malikie Innovations Limited
Filed Jun 4, 2008 as application 12/133,095 · Granted Jul 12, 2011
Base term plus 585 days of patent term adjustment (USPTO delay)
Today
2008
2030
Clock starts
Jun 4, 2008
Jun 4, 2008
Term ends
Jan 10, 2030
Jan 10, 2030
Granted
Jul 12, 2011
Jul 12, 2011
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
585
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.
3
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 585 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 Jun 4, 2008, when this application, 12/133,095, was filed | Jun 4, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +585 days, USPTO patent term adjustment record | Jan 10, 2030 | 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 | Jan 10, 2030 | High confidence |
This family
| US 7,978,934 | this patent Jan 2030 | Jan 2030 |
| US 8,233,732 | In force Jun 2028 | Jun 2028 |
| US 8,687,905 | In force Jun 2028 | Jun 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 |
|---|---|---|---|
| Jul 22, 2008 Reel 21269, frame 297 | Yu, Xiang; Yang, En-hui; Wang, Haiquan | Slipstream Data Inc. | Assignment of Assignor's Interest |
| Jan 14, 2009 Reel 22104, frame 217 | Slipstream Data Inc. | Research in Motion Limited | Assignment of Assignor's Interest |
| Feb 23, 2016 Reel 37893, frame 239 | Research in Motion Limited | BlackBerry Limited | Change of Name |
| Jun 16, 2023 Reel 64104, frame 103 | BlackBerry Limited | Malikie Innovations Limited | Assignment of Assignor's Interest |
| Jun 19, 2023 Reel 64270, frame 1 | BlackBerry Limited | Malikie Innovations Limited | Nunc Pro Tunc Assignment |
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
Jan 2030
Term ends Jan 10, 2030. No further fees fall due before then
Note
The 585 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
8
later US patents cite this one
That is below the median of utility patents granted in 2011 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.