Term ends Dec 14, 2028 · High confidence
20-year base term ends Oct 4, 2027
Filed Apr 24, 2009 as application 12/429,601 · Granted Dec 16, 2014
Base term plus 437 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Oct 4, 2007
Oct 4, 2007
Term ends
Dec 14, 2028
Dec 14, 2028
Granted
Dec 16, 2014
Dec 16, 2014
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
437
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.
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 437 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 Oct 4, 2007, when application 11/867,492, the earliest non-provisional in its chain, was filed (this one was filed Apr 24, 2009) | Oct 4, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +437 days, USPTO patent term adjustment record | Dec 14, 2028 | 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 | Dec 14, 2028 | High confidence |
This family
| US 8,054,048 | In force Sep 2030 | Sep 2030 |
| US 9,457,791 | In force Feb 2031 | Feb 2031 |
| US 8,912,753 | this patent 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 |
|---|---|---|---|
| Apr 24, 2009 reel/frame not recorded | Lauckner, Jonathan J.; Welchko, Brian A.; Woody, George R.; Pudar, Nikola J.; Bereisa, Jonas; Posawatz, Anthony L. | General Motors Corporation | Assignment of Assignor's Interest |
| Apr 24, 2009 reel/frame not recorded | Lauckner, Jonathan J.; Welchko, Brian A.; Woody, George R.; Pudar, Nikola J.; Bereisa, Jonas; Posawatz, Anthony L. | GM Global Technology Operations, Inc. | Assignment of Assignor's Interest |
| Apr 24, 2009 Reel 22594, frame 611 | Pudar, Nikola J.; Woody, George R.; Welchko, Brian A.; Bereisa, Jonas; Lauckner, Jonathan J.; Posawatz, Anthony L. | General Motors Corporation; GM Global Technology Operations, Inc. | Assignment of Assignor's Interest |
| Aug 21, 2009 Reel 23129, frame 236 | General Motors Corporation | Motors Liquidation Company | Change of Name |
| Aug 27, 2009 Reel 23148, frame 248 | Motors Liquidation Company | General Motors Company | Assignment of Assignor's Interest |
| Aug 27, 2009 Reel 23153, frame 456 | GM Global Technology Operations, Inc.; General Motors Company | United States Department of the Treasury | Security Agreement |
| Aug 27, 2009 Reel 23153, frame 509 | GM Global Technology Operations, Inc.; General Motors Company | Uaw Retiree Medical Benefits Trust | Security Agreement |
| Nov 12, 2009 Reel 23504, frame 691 | General Motors Company | General Motors LLC | Change of Name |
| 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/frame not recorded | United States Department of the Treasury | GM Global Technology Operations, Inc. | Release of Security Interest |
| Nov 5, 2010 reel/frame not recorded | United States Department of the Treasury | General Motors LLC | Release of Security Interest |
| Nov 5, 2010 reel/frame not recorded | Uaw Retiree Medical Benefits Trust | GM Global Technology Operations, Inc. | Release of Security Interest |
| Nov 5, 2010 reel/frame not recorded | Uaw Retiree Medical Benefits Trust | General Motors LLC | Release of Security Interest |
| Nov 5, 2010 Reel 25318, frame 13 | Uaw Retiree Medical Benefits Trust | GM Global Technology Operations, Inc.; General Motors LLC | Release of Security Interest |
| Nov 5, 2010 Reel 25318, frame 31 | United States Department of the Treasury | GM Global Technology Operations, Inc.; General Motors LLC | Release of Security Interest |
| Nov 8, 2010 Reel 25329, frame 382 | GM Global Technology Operations, Inc.; General Motors LLC | Wilmington Trust Company | Security Agreement |
| Feb 10, 2011 Reel 25781, frame 299 | GM Global Technology Operations, Inc. | GM Global Technology Operations LLC | Change of Name |
| Nov 7, 2014 Reel 34183, frame 436 | Wilmington Trust Company | General Motors 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
Dec 2028
Term ends Dec 14, 2028. No further fees fall due before then
Note
The 437 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
272
later US patents cite this one
That is top 1% 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.