Term ends Jul 30, 2040 · High confidence
20-year base term ends May 21, 2038
Held by Archer Aviation Inc.
Filed May 11, 2020 as application 16/872,017 · Granted Apr 23, 2024
Base term plus 801 days of patent term adjustment (USPTO delay)
Today
2018
2040
Clock starts
May 21, 2018
May 21, 2018
Term ends
Jul 30, 2040
Jul 30, 2040
Granted
Apr 23, 2024
Apr 23, 2024
base term
patent term adjustment
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
801
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.
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 801 days past its 20-year base term on prosecution delay. 0 of 3 maintenance fees are 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 May 21, 2018, when application 15/985,507, the earliest non-provisional in its chain, was filed (this one was filed May 11, 2020) | May 21, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +801 days, USPTO patent term adjustment record | Jul 30, 2040 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Jul 30, 2040 | High confidence |
This family
| US 10,351,235 | In force May 2038 | May 2038 |
| US 11,066,159 | In force Aug 2039 | Aug 2039 |
| US 10,974,826 | In force May 2038 | May 2038 |
| US 11,964,755 | this patent Jul 2040 | Jul 2040 |
| US 12,552,527 | In force May 2038 | May 2038 |
| Application 19/081,768 | Pending not computed | not computed |
| US 12,473,087 | In force May 2038 | May 2038 |
| US 12,404,020 | In force May 2038 | May 2038 |
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 |
|---|---|---|---|
| Sep 28, 2020 Reel 53907, frame 220 | Waide, William Martin; Karem, Abraham | Overair, Inc. | Assignment of Assignor's Interest |
| May 6, 2025 Reel 71041, frame 433 | Overair, Inc. | Archer Aviation 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
Jul 2040
Term ends Jul 30, 2040. Maintenance fees still fall due before then
Note
The 801 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
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
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.