Collateral for a security interest recorded Mar 2, 2026 (Oxford Finance LLC).
Term ends Mar 15, 2038 · High confidence
20-year base term ends Mar 15, 2038
Held by Orca Biosystems, Inc.
Filed Mar 15, 2018 as application 15/922,709 · Granted May 28, 2019
Base term, 20 years from filing
Today
2018
2038
Clock starts
Mar 15, 2018
Mar 15, 2018
Term ends
Mar 15, 2038
Mar 15, 2038
Granted
May 28, 2019
May 28, 2019
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.
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 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 Mar 15, 2018, when this application, 15/922,709, was filed | Mar 15, 2038 | 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 | Mar 15, 2038 | High confidence |
This family
| US 10,300,090 | this patent Mar 2038 | Mar 2038 |
| US 10,857,183 | In force Mar 2038 | Mar 2038 |
| US 12,011,461 | In force May 2040 | May 2040 |
| US 12,735,678 | In force Mar 2038 | Mar 2038 |
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 |
|---|---|---|---|
| Feb 6, 2019 Reel 48254, frame 787 | Dimov, Ivan K.; Sheehan, Kevin; Fernhoff, Nathaniel | Orca Biosystems Inc. | Assignment of Assignor's Interest |
| Apr 1, 2019 Reel 49107, frame 976 | Dimov, Ivan K.; Sheehan, Kevin; Fernhoff, Nathaniel | Orca Biosystems, Inc. | Corrective Assignment to Correct the Place a Comma After Biosystems and Before Inc. Previously Recorded on Reel 048254 Frame 0787. Assignor(S) Hereby Confirms the Assignment. |
| Apr 4, 2019 Reel 48806, frame 354 | Dimov, Ivan K.; Sheehan, Kevin; Fernhoff, Nathaniel | Orca Biosystems, Inc. | Corrective Assignment to Correct the Assignee Name Previously Recorded on Reel 048254 Frame 0787. Assignor(S) Hereby Confirms the Assignment. |
| Mar 2, 2026 Reel 73939, frame 71 | Orca Biosystems, Inc. | Oxford Finance LLC | 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
Mar 2038
Term ends Mar 15, 2038. Maintenance fees still fall due before then
Citations
3
later US patents cite this one
That is below the median of utility patents granted in 2019 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.