Term ends Jan 10, 2039 · High confidence
20-year base term ends Mar 27, 2038
Held by Solid Power Operating, Inc.
Filed Sep 24, 2019 as application 16/497,324 · Granted May 31, 2022
Base term plus 289 days of patent term adjustment (USPTO delay)
Today
2018
2039
Clock starts
Mar 27, 2018
Mar 27, 2018
Term ends
Jan 10, 2039
Jan 10, 2039
Granted
May 31, 2022
May 31, 2022
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
289
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.
4
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 289 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 Mar 27, 2018, when application PCT/US2018/024617, the earliest non-provisional in its chain, was filed (this one was filed Sep 24, 2019) | Mar 27, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +289 days, USPTO patent term adjustment record | Jan 10, 2039 | 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 | Jan 10, 2039 | High confidence |
This family
| Application PCT/US2018/024617 | PCT application no patent term | no patent term |
| US 11,349,149 | this patent Jan 2039 | Jan 2039 |
| US 12,166,173 | In force Mar 2038 | Mar 2038 |
| Application 18/938,664 | Pending not computed | not computed |
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 25, 2019 Reel 50490, frame 977 | Francisco, Brian E.; Platt, Heather A.s.; Becker, Collin R.; Buettner-garrett, Joshua | Solid Power, Inc. | Assignment of Assignor's Interest |
| Jan 4, 2023 Reel 62299, frame 237 | Solid Power, Inc. | Solid Power Operating, Inc. | Change of Name |
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
Jan 2039
Term ends Jan 10, 2039. Maintenance fees still fall due before then
Note
The 289 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2022 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.