Term ends Nov 1, 2039 · High confidence
20-year base term ends Mar 27, 2039
Filed Mar 27, 2019 as application 16/367,160 · Granted Sep 14, 2021
Base term plus 219 days of patent term adjustment (USPTO delay)
Today
2019
2039
Clock starts
Mar 27, 2019
Mar 27, 2019
Term ends
Nov 1, 2039
Nov 1, 2039
Granted
Sep 14, 2021
Sep 14, 2021
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
219
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.
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 219 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, 2019, when this application, 16/367,160, was filed | Mar 27, 2039 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +219 days, USPTO patent term adjustment record | Nov 1, 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 | Nov 1, 2039 | High confidence |
This family
| US 11,116,506 | this patent Nov 2039 | Nov 2039 |
| US 11,857,193 | In force 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 |
|---|---|---|---|
| Mar 27, 2019 Reel 48721, frame 450 | Alferness, Clifton A. | Spiration, Inc. - Olympus Respiratory America | Assignment of Assignor's Interest |
| Mar 27, 2019 Reel 48720, frame 256 | Muia-longman, Gina M. | Spiration, Inc. - Olympus Respiratory America | Assignment of Assignor's Interest |
| Mar 27, 2019 Reel 48720, frame 249 | Smith, Adam Lee | Spiration, Inc. - Olympus Respiratory America | Assignment of Assignor's Interest |
| Mar 27, 2019 Reel 48720, frame 258 | Finger, Clinton L. | Spiration, Inc. - Olympus Respiratory America | Assignment of Assignor's Interest |
| Mar 27, 2019 Reel 48721, frame 452 | Seward, David R. | Spiration, Inc. - Olympus Respiratory America | 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
Nov 2039
Term ends Nov 1, 2039. Maintenance fees still fall due before then
Note
The 219 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
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.