Collateral for a security interest recorded Jun 28, 2019 (Bank of America, N.A.).
Lapsed Dec 24, 2021 on the fee record · High confidence
20-year base term ends Oct 23, 2029
Second maintenance fee unpaid; grace period ended.
Held by Gentherm Incorporated
Filed Oct 23, 2009 as application 12/605,249 · Granted Dec 24, 2013
Base term, 20 years from filing, plus 580 days of patent term adjustment (USPTO delay)
Today
Lapsed Dec 24, 2021
2009
2031
Clock starts
Oct 23, 2009
Oct 23, 2009
No longer in force
Dec 24, 2021
Dec 24, 2021
Granted
Dec 24, 2013
Dec 24, 2013
Term would have run to
May 26, 2031
May 26, 2031
base term
patent term adjustment
after the term ends
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
580
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
8
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 May 26, 2031: its 20-year base term plus 580 days of term adjustment for prosecution delay. 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 23, 2009, when this application, 12/605,249, was filed | Oct 23, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +580 days, USPTO patent term adjustment record | May 26, 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 | 1 of 3 maintenance fees paid | lapsed Dec 24, 2021 | High confidence |
| Computed term end | The steps above, in order | Dec 24, 2021 | High confidence |
This family
| US 8,613,200 | this patent Dec 2021 | Dec 2021 |
| US 9,038,400 | In force Aug 2033 | Aug 2033 |
| US 9,555,686 | Lapsed on the fee record Jan 2025 | Jan 2025 |
| US 10,106,011 | Lapsed on the fee record Oct 2026 | Oct 2026 |
| Application 15/414,530 | Abandoned not computed | not computed |
| US 11,203,249 | Lapsed on the fee record Dec 2025 | Dec 2025 |
6 of 8 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 |
|---|---|---|---|
| Jan 11, 2010 Reel 23763, frame 152 | Lagrandeur, John; Bell, Lon E. | BSST LLC | Assignment of Assignor's Interest |
| May 11, 2012 Reel 28192, frame 16 | Amerigon Incorporated; BSST LLC; ZT Plus, LLC | Bank Of America, N.a. | Security Agreement |
| Feb 9, 2015 Reel 34925, frame 240 | BSST LLC | Gentherm Incorporated | Assignment of Assignor's Interest |
| Jun 28, 2019 Reel 49627, frame 311 | Gentherm Incorporated | Bank of America, N.A., as Administrative Agent | Notice of Grant of Security Interest in Patents |
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 580 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
56
later US patents cite this one
That is top 10% of utility patents granted in 2013 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.