Term ends Aug 27, 2034 · High confidence
20-year base term ends Aug 4, 2034
Held by Enevolv, Inc.
Filed Jun 11, 2019 as application 16/437,018 · Granted Aug 23, 2022
Base term plus 553 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2014
2034
Clock starts
Aug 4, 2014
Aug 4, 2014
Term ends
Aug 27, 2034
Aug 27, 2034
Granted
Aug 23, 2022
Aug 23, 2022
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
553
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,370,654, US 9,944,925.
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.
4
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 553 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Aug 4, 2014, when application PCT/US2014/049649, the earliest non-provisional in its chain, was filed (this one was filed Jun 11, 2019) | Aug 4, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +553 days, USPTO patent term adjustment record | Feb 8, 2036 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,370,654, US 9,944,925) | capped to Aug 27, 2034 | 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 | Aug 27, 2034 | High confidence |
This family
| Application PCT/US2014/049649 | PCT application no patent term | no patent term |
| US 9,944,925 | In force Dec 2034 | Dec 2034 |
| US 10,370,654 | In force Aug 2034 | Aug 2034 |
| US 11,421,223 | this patent Aug 2034 | Aug 2034 |
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 |
|---|---|---|---|
| Jul 16, 2019 Reel 49761, frame 36 | Konieczka, Jay H.; Spoonamore, James E.; Wapinski, Ilan N.; Isaacs, Farren J.; Foley, Gregory B. | Enevolv, Inc. | Assignment of Assignor's Interest |
| Jul 1, 2020 Reel 53116, frame 712 | Enevolv, Inc. | Perceptive Credit Holdings II, LP | Patent Security Agreement |
| Jul 1, 2022 Reel 60422, frame 201 | Perceptive Credit Holdings II, LP, as Administrative Agent | Enevolv, Inc. | Release of Security 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
Aug 2034
Term ends Aug 27, 2034. Maintenance fees still fall due before then
Note
The 553 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,370,654, US 9,944,925.
Citations
2
later US patents cite this one
That is above the median of utility patents granted in 2022 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.