Term ends Apr 12, 2030 · High confidence
20-year base term ends Mar 31, 2030
Held by Everspin Technologies, Inc.
Filed Mar 21, 2019 as application 16/360,099 · Granted Jun 1, 2021
Base term plus 12 days of patent term adjustment (USPTO delay)
Today
2010
2030
Clock starts
Mar 31, 2010
Mar 31, 2010
Term ends
Apr 12, 2030
Apr 12, 2030
Granted
Jun 1, 2021
Jun 1, 2021
base term
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
12
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 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
10
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 12 days past its 20-year base term on prosecution delay. 1 of 2 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 31, 2010, when application 12/751,927, the earliest non-provisional in its chain, was filed (this one was filed Mar 21, 2019) | Mar 31, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +12 days, USPTO patent term adjustment record | Apr 12, 2030 | 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 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 12, 2030 | High confidence |
This family
| US 8,518,734 | In force Oct 2031 | Oct 2031 |
| US 9,269,891 | In force Jun 2030 | Jun 2030 |
| US 9,362,491 | In force Mar 2030 | Mar 2030 |
| US 9,525,129 | In force Mar 2030 | Mar 2030 |
| US 9,553,261 | In force Mar 2030 | Mar 2030 |
| US 9,893,274 | In force Mar 2030 | Mar 2030 |
| US 10,276,789 | In force Mar 2030 | Mar 2030 |
| US 11,024,799 | this patent Apr 2030 | Apr 2030 |
8 of 10 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 |
|---|---|---|---|
| Mar 21, 2019 Reel 48656, frame 868 | Whig, Renu; Mather, Phillip; Smith, Kenneth; Aggarwal, Sanjeev; Rizzo, Nicholas; Slaughter, Jon | Everspin Technologies, 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
Apr 2030
Term ends Apr 12, 2030. Maintenance fees still fall due before then
Note
The 12 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
4
later US patents cite this one
That is above the median 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.