Also listed on IBM Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 31, 2031 · High confidence
20-year base term ends Nov 11, 2028
Filed Nov 11, 2008 as application 12/268,881 · Granted May 6, 2014
Base term plus 870 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
Nov 11, 2008
Nov 11, 2008
Term ends
Mar 31, 2031
Mar 31, 2031
Granted
May 6, 2014
May 6, 2014
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
870
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.
6
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 870 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 Nov 11, 2008, when this application, 12/268,881, was filed | Nov 11, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +870 days, USPTO patent term adjustment record | Mar 31, 2031 | 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 | Mar 31, 2031 | High confidence |
This family
| US 8,719,541 | this patent Mar 2031 | Mar 2031 |
| US 9,483,419 | In force Aug 2029 | Aug 2029 |
| US 10,534,727 | In force Apr 2029 | Apr 2029 |
| US 11,061,833 | In force Nov 2028 | Nov 2028 |
| US 11,119,949 | In force Nov 2028 | Nov 2028 |
| US 11,163,702 | In force Nov 2028 | Nov 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 |
|---|---|---|---|
| Jan 27, 2009 Reel 22163, frame 579 | Murray, Simon; North, Geraint M. | Transitive Limited | Assignment of Assignor's Interest |
| Jun 16, 2009 Reel 22824, frame 715 | Transitive Limited | IBM United Kingdom Limited | Assignment of Assignor's Interest |
| Jul 7, 2009 Reel 22928, frame 190 | IBM United Kingdom Limited | IBM Corporation | Assignment of Assignor's Interest |
| Aug 26, 2013 Reel 31085, frame 824 | IBM United Kingdom Limited | International Business Machines Corporation | Corrective Assignment to Correct the Assignee Name Previously Recorded on Reel 022928 Frame 0190. Assignor(S) Hereby Confirms the Receiving Party. |
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
Mar 2031
Term ends Mar 31, 2031. No further fees fall due before then
Note
The 870 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
28
later US patents cite this one
That is top 25% of utility patents granted in 2014 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.