Lapsed Aug 26, 2026 on the fee record · High confidence
20-year base term ends Dec 19, 2027
Third maintenance fee unpaid; grace period ended.
Filed Jun 30, 2009 as application 12/495,348 · Granted Aug 26, 2014
Base term, 20 years from filing, plus 506 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Aug 26, 2026
2007
2028
Clock starts
Dec 19, 2007
Dec 19, 2007
No longer in force
Aug 26, 2026
Aug 26, 2026
Granted
Aug 26, 2014
Aug 26, 2014
Term would have run to
Feb 3, 2028
Feb 3, 2028
base term
patent term adjustment
after the term ends
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
506
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,595,764.
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.
4
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Feb 3, 2028: its 20-year base term plus 506 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Dec 19, 2007, when application 11/960,657, the earliest non-provisional in its chain, was filed (this one was filed Jun 30, 2009) | Dec 19, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +506 days, USPTO patent term adjustment record | May 8, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,595,764) | capped to Feb 3, 2028 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed Aug 26, 2026 | High confidence |
| Computed term end | The steps above, in order | Aug 26, 2026 | High confidence |
This family
| US 7,595,764 | In force Feb 2028 | Feb 2028 |
| US 8,816,923 | this patent Aug 2026 | Aug 2026 |
| US D669,454 | Term ended Oct 2026 | Oct 2026 |
| US 9,225,061 | In force Dec 2027 | Dec 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 |
|---|---|---|---|
| Sep 11, 2009 Reel 23217, frame 539 | Shuster, Sam; King, Lael | Electronic Controlled Systems, Inc. | 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.
What's changing
Note
The 506 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 7,595,764.
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.