Term ends Aug 3, 2039 · Medium confidence
20-year base term ends Feb 26, 2036
Why Medium: A parent in the chain could not be resolved.
Held by Flex Operating Room, Inc.
Filed Feb 19, 2021 as application 17/180,468 · Granted Dec 16, 2025
Base term plus 1254 days of patent term adjustment (USPTO delay)
Today
2016
2039
Clock starts
Feb 26, 2016
Feb 26, 2016
Term ends
Aug 3, 2039
Aug 3, 2039
Granted
Dec 16, 2025
Dec 16, 2025
base term
patent term adjustment
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
1,254
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.
11
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 1254 days past its 20-year base term on prosecution delay. 0 of 3 maintenance fees are paid so far. Confidence: Medium. 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 Feb 26, 2016, when application 15/055,280, the earliest non-provisional in its chain, was filed (this one was filed Feb 19, 2021); a parent in its chain could not be resolved (the next row) | Feb 26, 2036 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +1254 days, USPTO patent term adjustment record | Aug 3, 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 3, 2039 | Medium confidence |
This family
| US 9,895,201 | In force Feb 2036 | Feb 2036 |
| US 10,271,917 | In force Oct 2036 | Oct 2036 |
| US 10,575,915 | In force Feb 2036 | Feb 2036 |
| US 11,389,260 | In force Feb 2036 | Feb 2036 |
| US 12,496,159 | this patent Aug 2039 | Aug 2039 |
| US 11,980,486 | In force Feb 2036 | Feb 2036 |
| US 12,279,918 | In force Feb 2036 | Feb 2036 |
| Application 19/184,441 | Pending not computed | not computed |
8 of 11 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 |
|---|---|---|---|
| Feb 22, 2021 Reel 55352, frame 847 | Gerstner, Jeffrey; Bonisteel, Gregory | Flex Operating Room, LLC | Assignment of Assignor's Interest |
| Aug 2, 2022 Reel 60701, frame 326 | Flex Operating Room LLC; Flex Operating Room, Inc. | Flex Operating Room, Inc. | Merger and 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
Aug 2039
Term ends Aug 3, 2039. Maintenance fees still fall due before then
Note
The 1254 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 2025 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.