Term ends Feb 7, 2034 · High confidence
20-year base term ends Sep 11, 2028
Filed Sep 11, 2008 as application 12/208,374 · Granted May 12, 2015
Base term plus 1975 days of patent term adjustment (USPTO delay)
Today
2008
2034
Clock starts
Sep 11, 2008
Sep 11, 2008
Term ends
Feb 7, 2034
Feb 7, 2034
Granted
May 12, 2015
May 12, 2015
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
1,975
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.
11
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 1975 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 Sep 11, 2008, when this application, 12/208,374, was filed | Sep 11, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1975 days, USPTO patent term adjustment record | Feb 7, 2034 | 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 | Feb 7, 2034 | High confidence |
This family
| US 9,000,923 | In force Sep 2033 | Sep 2033 |
| US 7,716,977 | Lapsed on the fee record May 2014 | May 2014 |
| US 9,027,611 | this patent Feb 2034 | Feb 2034 |
| US 9,168,789 | In force Jun 2030 | Jun 2030 |
| US 8,420,759 | In force Jun 2029 | Jun 2029 |
| US 9,168,791 | In force Mar 2031 | Mar 2031 |
| US 8,919,403 | In force Jan 2032 | Jan 2032 |
| US 8,312,766 | In force Sep 2029 | Sep 2029 |
8 of 11 applications in this family shown, earliest filings first. 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 14, 2015 Reel 35400, frame 929 | Ashton, Charles Joseph; Bonko, Mark Leonard; Boore, Robert Edgar; Curtis, Michael Howard; Dixon, Max Harold; Elsass, Joshua Randall; Renner, John David | The Goodyear Tire & Rubber Company | 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
Feb 2034
Term ends Feb 7, 2034. No further fees fall due before then
Note
The 1975 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
25
later US patents cite this one
That is top 25% of utility patents granted in 2015 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.