Term ends Oct 18, 2039 · Medium confidence
20-year base term ends Mar 27, 2039
Why Medium: A parent in the chain could not be resolved.
Filed Aug 12, 2021 as application 17/400,926 · Granted Jan 2, 2024
Base term plus 205 days of patent term adjustment (USPTO delay)
Today
2019
2039
Clock starts
Mar 27, 2019
Mar 27, 2019
Term ends
Oct 18, 2039
Oct 18, 2039
Granted
Jan 2, 2024
Jan 2, 2024
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
205
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.
2
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 205 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 Mar 27, 2019, when application 16/367,160, the earliest non-provisional in its chain, was filed (this one was filed Aug 12, 2021); a parent in its chain could not be resolved (the next row) | Mar 27, 2039 | 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 | +205 days, USPTO patent term adjustment record | Oct 18, 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 | Oct 18, 2039 | Medium confidence |
This family
| US 11,116,506 | In force Nov 2039 | Nov 2039 |
| US 11,857,193 | this patent Oct 2039 | Oct 2039 |
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 |
|---|---|---|---|
| Jan 26, 2022 Reel 58768, frame 851 | Smith, Adam Lee; Alferness, Clifton A.; Muia-longman, Gina M.; Finger, Clinton L.; Seward, David R. | Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America | Assignment of Assignor's Interest |
| Jan 26, 2022 Reel 58769, frame 43 | Spiration, Inc. | Gyrus Acmi, Inc. | Merger |
| May 11, 2023 Reel 63614, frame 201 | Gyrus Acmi, Inc. | Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America | Change of Name |
| May 11, 2023 Reel 63624, frame 445 | Smith, Adam Lee; Alferness, Clifton A.; Muia-longman, Gina M.; Finger, Clinton L.; Seward, David R. | Spiration, Inc. D/B/A Olympus Respiratory America | Corrective Assignment to Correct the the Assignee Previously Recorded at Reel: 058768 Frame: 0851. Assignor(S) Hereby Confirms the Assignment. |
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
Oct 2039
Term ends Oct 18, 2039. Maintenance fees still fall due before then
Note
The 205 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite 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.