Term ends Sep 9, 2039 · High confidence
20-year base term ends May 30, 2039
Held by Hydrow, Inc.
Filed Jan 6, 2025 as application 19/010,742 · Granted Nov 3, 2026
Base term plus 102 days of patent term adjustment (USPTO delay)
Today
2019
2039
Clock starts
May 30, 2019
May 30, 2019
Term ends
Sep 9, 2039
Sep 9, 2039
Granted
Nov 3, 2026
Nov 3, 2026
base term
patent term adjustment
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
102
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.
5
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 102 days past its 20-year base term on prosecution delay. 0 of 3 maintenance fees are 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 May 30, 2019, when application 16/426,347, the earliest non-provisional in its chain, was filed (this one was filed Jan 6, 2025) | May 30, 2039 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +102 days, USPTO patent term adjustment record | Sep 9, 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 | Sep 9, 2039 | High confidence |
This family
| US 10,828,531 | In force May 2039 | May 2039 |
| Application PCT/US2020/032132 | PCT application no patent term | no patent term |
| US 11,904,200 | In force Dec 2039 | Dec 2039 |
| US 12,186,622 | In force May 2039 | May 2039 |
| US 12,779,278 | this patent Sep 2039 | Sep 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 29, 2025 Reel 70049, frame 371 | Heribert Renner, Klaus; Churchill Taliaferro Burke, William; Oscar Mur-miranda, Jose; Olin Evans, Christopher | Cooper Perkins, Inc. | Assignment of Assignor's Interest |
| Jan 29, 2025 Reel 70054, frame 299 | Smith, Bruce | Hydrow, Inc. | Assignment of Assignor's Interest |
| Jan 29, 2025 Reel 70054, frame 378 | Cooper Perkins, Inc. | Hydrow, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Sep 2039
Term ends Sep 9, 2039. Maintenance fees still fall due before then
Note
The 102 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.