Term ends May 27, 2038 · High confidence
20-year base term ends Sep 20, 2037
Held by Tesla, Inc.
Filed Mar 13, 2018 as application 15/920,173 · Granted Oct 26, 2021
Base term plus 249 days of patent term adjustment (USPTO delay)
Today
2017
2038
Clock starts
Sep 20, 2017
Sep 20, 2017
Term ends
May 27, 2038
May 27, 2038
Granted
Oct 26, 2021
Oct 26, 2021
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
249
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.
16
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 249 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is paid so far. 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 | +249 days, USPTO patent term adjustment record | May 27, 2038 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | May 27, 2038 | High confidence |
This family
| US 10,671,349 | In force Nov 2037 | Nov 2037 |
| US 11,157,441 | this patent May 2038 | May 2038 |
| US 11,157,287 | Lapsed on the fee record 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 |
|---|---|---|---|
| May 29, 2018 Reel 45921, frame 610 | Talpes, Emil; McGee, William; Bannon, Peter Joseph | 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
May 2038
Term ends May 27, 2038. Maintenance fees still fall due before then
Note
The 249 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
52
later US patents cite this one
That is top 5% 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.