Term ends Feb 14, 2031 · High confidence
20-year base term ends Jan 6, 2029
Filed Jan 6, 2009 as application 12/349,336 · Granted Oct 4, 2016
Base term plus 769 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Jan 6, 2009
Jan 6, 2009
Term ends
Feb 14, 2031
Feb 14, 2031
Granted
Oct 4, 2016
Oct 4, 2016
base term
patent term adjustment
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
769
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
This patent's term runs 769 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Jan 6, 2009, when this application, 12/349,336, was filed | Jan 6, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +769 days, USPTO patent term adjustment record | Feb 14, 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 14, 2031 | High confidence |
This family
| US 8,054,048 | In force Sep 2030 | Sep 2030 |
| US 9,457,791 | this patent Feb 2031 | Feb 2031 |
| US 8,912,753 | In force Dec 2028 | Dec 2028 |
| Application PCT/US2010/020752 | PCT application no patent term | no patent term |
| US 8,278,881 | In force Oct 2027 | Oct 2027 |
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 6, 2009 Reel 22065, frame 990 | Vitale, Robert L.; Bereisa, Jonas; Beaufait, Raymond A.; Kissel, Gery J.; Markyvech, Craig R. | GM Global Technology Operations, Inc. | Assignment of Assignor's Interest |
| Aug 27, 2009 Reel 23156, frame 313 | GM Global Technology Operations, Inc. | United States Department of the Treasury | Security Agreement |
| Aug 28, 2009 Reel 23162, frame 237 | GM Global Technology Operations, Inc. | Uaw Retiree Medical Benefits Trust | Security Agreement |
| Nov 4, 2010 Reel 25246, frame 56 | United States Department of the Treasury | GM Global Technology Operations, Inc. | Release of Security Interest |
| Nov 5, 2010 Reel 25315, frame 46 | Uaw Retiree Medical Benefits Trust | GM Global Technology Operations, Inc. | Release of Security Interest |
| Nov 8, 2010 Reel 25324, frame 515 | GM Global Technology Operations, Inc. | Wilmington Trust Company | Security Agreement |
| Feb 10, 2011 Reel 25781, frame 245 | GM Global Technology Operations, Inc. | GM Global Technology Operations LLC | Change of Name |
| Nov 7, 2014 Reel 34185, frame 789 | Wilmington Trust Company | GM Global Technology Operations LLC | Release of Security 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
Feb 2031
Term ends Feb 14, 2031. Maintenance fees still fall due before then
Note
The 769 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
81
later US patents cite this one
That is top 5% of utility patents granted in 2016 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.