Term ends Oct 21, 2040 · High confidence
20-year base term ends Oct 21, 2040
Held by Surmodicsst, Incorporated
Filed Oct 21, 2020 as application 17/075,931 · Granted Jun 14, 2022
Base term, 20 years from filing
Today
2020
2040
Clock starts
Oct 21, 2020
Oct 21, 2020
Term ends
Oct 21, 2040
Oct 21, 2040
Granted
Jun 14, 2022
Jun 14, 2022
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
None
Term adjustment
No prosecution delay on this record.
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 is its 20-year base term, with no adjustment for 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 Oct 21, 2020, when this application, 17/075,931, was filed | Oct 21, 2040 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | Oct 21, 2040 | High confidence |
This family
| US 11,359,156 | this patent Oct 2040 | Oct 2040 |
| US 11,578,286 | In force Oct 2040 | Oct 2040 |
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 6, 2021 Reel 56158, frame 658 | Long, Tyler Richard; Ilenda, Casmir S. | Biocoat, Inc. | Assignment of Assignor's Interest |
| Oct 5, 2022 Reel 61606, frame 579 | Long, Tyler Richard; Ilenda, Casmir S | Biocoat, Incorporated | Corrective Assignment to Correct the Name of Assignee from Biocoat, Inc. to Biocoat, Incroporated Previously Recorded at Reel: 056158 Frame: 0658. Assignor(S) Hereby Confirms the Assignment. |
| Nov 1, 2022 Reel 61609, frame 774 | Biocoat, Incorporated | BMO Harris Bank N.A., as Collateral Agent | Security Interest |
| Nov 1, 2022 Reel 61615, frame 577 | Biocoat, Incorporated | Alter Domus (US) LLC | Security Interest |
| Nov 23, 2025 Reel 73768, frame 342 | Alter Domus (US) LLC | Biocoat, Incorporated | Release of Security Interest Recorded at 061615/0577 |
| Nov 23, 2025 Reel 73768, frame 769 | BMO Bank N.A. (F/K/A BMO Harris Bank N.A.) | Biocoat, Incorporated | Release of Security Interest Recorded at Reel/Frame 061609/0774 |
| Jan 6, 2026 Reel 73381, frame 915 | Biocoat, Incorporated | Integer Augusta Technologies LLC | Assignment of Assignor's Interest |
| Jan 12, 2026 Reel 74329, frame 875 | Integer Augusta Technologies LLC | Integer Hydrophilic Technologies LLC | Change of Name |
| Feb 3, 2026 Reel 73675, frame 456 | Integer Hydrophilic Technologies LLC | Wells Fargo Bank, National Association, as Administrative Agent | Security Interest |
| Mar 5, 2026 Reel 75046, frame 105 | Biocoat, Incorporated | Surmodicsst, Incorporated | Change of Name |
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
Oct 2040
Term ends Oct 21, 2040. Maintenance fees still fall due before then
Citations
13
later US patents cite this one
That is top 10% 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.