Lapsed Oct 26, 2025 on the fee record · High confidence
20-year base term ends Sep 20, 2037
First maintenance fee unpaid; grace period ended.
Held by Tesla, Inc.
Filed Mar 13, 2018 as application 15/920,150 · Granted Oct 26, 2021
Base term, 20 years from filing, plus 43 days of patent term adjustment (USPTO delay)
Today
Lapsed Oct 26, 2025
2017
2037
Clock starts
Sep 20, 2017
Sep 20, 2017
No longer in force
Oct 26, 2025
Oct 26, 2025
Granted
Oct 26, 2021
Oct 26, 2021
Term would have run to
Nov 2, 2037
Nov 2, 2037
base term
patent term adjustment
after the term ends
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
43
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
16
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 Nov 2, 2037: its 20-year base term plus 43 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 Sep 20, 2017, when application 15/710,433, the earliest non-provisional in its chain, was filed (this one was filed Mar 13, 2018) | Sep 20, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +43 days, USPTO patent term adjustment record | Nov 2, 2037 | 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 | 0 of 3 maintenance fees paid | lapsed Oct 26, 2025 | High confidence |
| Computed term end | The steps above, in order | Oct 26, 2025 | High confidence |
This family
| US 10,671,349 | In force Nov 2037 | Nov 2037 |
| US 11,157,441 | In force May 2038 | May 2038 |
| US 11,157,287 | this patent Oct 2025 | Oct 2025 |
| US 11,409,692 | In force Sep 2037 | Sep 2037 |
| Application PCT/US2018/038618 | PCT application no patent term | no patent term |
| Application PCT/US2018/042959 | PCT application no patent term | no patent term |
| US 11,403,069 | In force Sep 2037 | Sep 2037 |
| US 11,681,649 | In force no later than Sep 2037 | no later than Sep 2037 |
8 of 16 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 |
|---|---|---|---|
| Jun 5, 2018 Reel 45993, frame 266 | Talpes, Emil; Bannon, Peter Joseph; Hurd, Kevin Altair | Tesla, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Note
The 43 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
10
later US patents cite this one
That is top 25% of utility patents granted in 2021 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.