Lapsed Mar 10, 2024 on the fee record · High confidence
20-year base term ends May 27, 2030
First maintenance fee unpaid; grace period ended.
Held by Profusa, Inc.
Filed Dec 12, 2016 as application 15/376,147 · Granted Mar 10, 2020
Base term, 20 years from filing, plus 56 days of patent term adjustment (USPTO delay)
Today
Lapsed Mar 10, 2024
2010
2030
Clock starts
May 27, 2010
May 27, 2010
No longer in force
Mar 10, 2024
Mar 10, 2024
Granted
Mar 10, 2020
Mar 10, 2020
Term would have run to
Jul 22, 2030
Jul 22, 2030
base term
patent term adjustment
after the term ends
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
56
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 9,517,023, to Jul 22, 2030. The term already ends on or before that date, so the cap shortened nothing.
0 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.
Its term would have run to Jul 22, 2030: its 20-year base term plus 56 days of term adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 27, 2010, when application 12/789,048, the earliest non-provisional in its chain, was filed (this one was filed Dec 12, 2016) | May 27, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +56 days, USPTO patent term adjustment record | Jul 22, 2030 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,517,023) | resolves to Jul 22, 2030, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | lapsed Mar 10, 2024 | High confidence |
| Computed term end | The steps above, in order | Mar 10, 2024 | High confidence |
This family
| US 9,517,023 | Lapsed on the fee record Dec 2024 | Dec 2024 |
| Application PCT/US2010/036698 | PCT application no patent term | no patent term |
| US 10,463,287 | In force Oct 2031 | Oct 2031 |
| US 10,010,272 | In force (reinstated) May 2031 | May 2031 |
| US 10,117,613 | In force Oct 2031 | Oct 2031 |
| US 10,583,308 | this patent Mar 2024 | Mar 2024 |
| Application 15/606,666 | Abandoned not computed | not computed |
| Application 16/017,752 | Abandoned not computed | not computed |
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 |
|---|---|---|---|
| Dec 15, 2017 Reel 44407, frame 82 | McMillan, William A.; Wisniewski, Natalie | Profusa, Inc. | Assignment of Assignor's Interest |
| Dec 15, 2017 Reel 44407, frame 99 | McMillan, William A.; Wisniewski, Natalie A. | Profusa, 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 56 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 9,517,023, ends no earlier than this term, so it caps nothing.
Citations
14
later US patents cite this one
That is top 25% of utility patents granted in 2020 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.