Term ends Jun 22, 2035 · High confidence
20-year base term ends Jun 19, 2035
Held by P2 Science, Inc.
Filed Dec 19, 2016 as application 15/320,250 · Granted Sep 11, 2018
Base term plus 3 days of patent term adjustment (USPTO delay)
Today
2015
2035
Clock starts
Jun 19, 2015
Jun 19, 2015
Term ends
Jun 22, 2035
Jun 22, 2035
Granted
Sep 11, 2018
Sep 11, 2018
base term
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
3
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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 3 days past its 20-year base term on prosecution delay. 2 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 Jun 19, 2015, when application PCT/US2015/036589, the earliest non-provisional in its chain, was filed (this one was filed Dec 19, 2016) | Jun 19, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +3 days, USPTO patent term adjustment record | Jun 22, 2035 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 22, 2035 | High confidence |
This family
| Application PCT/US2015/036589 | PCT application no patent term | no patent term |
| US 10,071,944 | this patent Jun 2035 | Jun 2035 |
| US 10,428,001 | In force Jun 2035 | Jun 2035 |
| US 10,934,239 | In force Jun 2035 | Jun 2035 |
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 |
|---|---|---|---|
| May 15, 2020 Reel 52678, frame 391 | P2 Science, Inc. | Webster Bank, National Association | Security Interest |
| Dec 3, 2022 Reel 62050, frame 152 | P2 Science, Inc. | HG Ventures LLC | Security Interest |
| Feb 6, 2023 Reel 62650, frame 301 | HG Ventures LLC | P2 Science, Inc. | Release of Security Interest |
| Jul 7, 2026 Reel 75926, frame 298 | P2 Science, Inc., | Connecticut Innovations, Incorporated | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jun 2035
Term ends Jun 22, 2035. Maintenance fees still fall due before then
Note
The 3 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is above the median of utility patents granted in 2018 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.