Term ends Nov 18, 2026 · High confidence
20-year base term ended May 9, 2026
Filed May 9, 2006 as application 11/430,372 · Granted Mar 31, 2009
Base term plus 193 days of patent term adjustment (USPTO delay)
Today
2006
2026
Clock starts
May 9, 2006
May 9, 2006
Term ends
Nov 18, 2026
Nov 18, 2026
Granted
Mar 31, 2009
Mar 31, 2009
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
193
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.
This patent's term runs 193 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 May 9, 2006, when this application, 11/430,372, was filed | May 9, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +193 days, USPTO patent term adjustment record | Nov 18, 2026 | 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 | Nov 18, 2026 | High confidence |
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 |
|---|---|---|---|
| May 9, 2006 Reel 17878, frame 811 | Manwaring, Marvin V.; Riefe, Richard K.; Ravindra, Ravi; Kaufmann, Timothy W.; Menjak, Ratko; Huber, Albert C. | Delphi Technologies, Inc. | Assignment of Assignor's Interest |
| Oct 20, 2009 Reel 23449, frame 65 | Delphi Technologies, Inc. | GM Global Technology Operations, Inc. | Assignment of Assignor's Interest |
| Nov 13, 2009 Reel 23510, frame 562 | Delphi Technologies, Inc. | The Bank of New York Mellon, as Administrative Agent | Security Agreement |
| Feb 25, 2010 Reel 23988, frame 754 | Delphi Technologies, Inc. | GM Global Technology Operations, Inc. | Assignment of Assignor's Interest |
| Feb 25, 2010 Reel 23990, frame 349 | GM Global Technology Operations, Inc. | United States Department of the Treasury | Security Agreement |
| Feb 25, 2010 Reel 23990, frame 831 | GM Global Technology Operations, Inc. | Uaw Retiree Medical Benefits Trust | Security Agreement |
| Nov 22, 2010 Reel 25386, frame 503 | Uaw Retiree Medical Benefits Trust | GM Global Technology Operations, Inc. | Release of Security Interest |
| Nov 22, 2010 Reel 25386, frame 591 | United States Department of the Treasury | GM Global Technology Operations, Inc. | Release of Security Interest |
| Apr 15, 2011 Reel 26138, frame 574 | The Bank of New York Mellon | Delphi Connection Systems Holdings LLC; Delphi Properties Management LLC; Delphi Technologies, Inc.; Delphi Automotive Systems LLC; Delphi Connection Systems LLC; Delphi Corporation; Delphi Holdings LLC; Delphi International Services Company LLC; Delphi Medical Systems LLC; Delphi Trade Management LLC | Release of Security Interest |
| Apr 15, 2011 reel/frame not recorded | The Bank of New York Mellon | Delphi Connection Systems Holdings LLC | Release of Security Interest |
| Apr 15, 2011 reel/frame not recorded | The Bank of New York Mellon | Delphi Properties Management LLC | Release of Security Interest |
| Apr 15, 2011 reel/frame not recorded | The Bank of New York Mellon | Delphi Technologies, Inc. | Release of Security Interest |
| Apr 15, 2011 reel/frame not recorded | The Bank of New York Mellon | Delphi Automotive Systems LLC | Release of Security Interest |
| Apr 15, 2011 reel/frame not recorded | The Bank of New York Mellon | Delphi Connection Systems LLC | Release of Security Interest |
| Apr 15, 2011 reel/frame not recorded | The Bank of New York Mellon | Delphi Corporation | Release of Security Interest |
| Apr 15, 2011 reel/frame not recorded | The Bank of New York Mellon | Delphi Holdings LLC | Release of Security Interest |
| Apr 15, 2011 reel/frame not recorded | The Bank of New York Mellon | Delphi International Services Company LLC | Release of Security Interest |
| Apr 15, 2011 reel/frame not recorded | The Bank of New York Mellon | Delphi Medical Systems LLC | Release of Security Interest |
| Apr 15, 2011 reel/frame not recorded | The Bank of New York Mellon | Delphi Trade Management LLC | Release of Security Interest |
| Jan 10, 2012 Reel 27842, frame 918 | GM Global Technology Operations, Inc. | Pacific Century Motors, Inc.; GM Global Technology Operations, Inc. | Assignment of Assignor's Interest |
| Jan 10, 2012 reel/frame not recorded | GM Global Technology Operations, Inc. | Pacific Century Motors, Inc. | Assignment of Assignor's Interest |
| Jan 10, 2012 reel/frame not recorded | GM Global Technology Operations, Inc. | GM Global Technology Operations, Inc. | Assignment of Assignor's Interest |
| Mar 15, 2012 Reel 27870, frame 666 | Pacific Century Motors, Inc.; Nexteer (Beijing) Technology Co., Ltd. | Steering Solutions IP Holding Corporation | 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.
What's changing
Nov 2026
Term ends Nov 18, 2026. No further fees fall due before then
Note
The 193 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
9
later US patents cite this one
That is below the median of utility patents granted in 2009 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.