Term ended Jan 31, 2022 · Low confidence
20-year base term ends Jul 14, 2035
Held by Evolved by Nature, Inc.
Filed Mar 7, 2023 as application 18/179,869 · Granted Feb 18, 2025
Base term plus 21 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Jan 31, 2022
2015
2035
Clock starts
Jul 14, 2015
Jul 14, 2015
Term ended
Jan 31, 2022
Jan 31, 2022
Granted
Feb 18, 2025
Feb 18, 2025
base term
after the term ends
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
21
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 10,301,768, US 11,453,975, US 11,649,585, US 11,970,815, US 12,371,848, US 12,385,181, US 6,466,468.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
12
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 21 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. Confidence: Low. 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 Jul 14, 2015, when application 62/192,477, the earliest non-provisional in its chain, was filed (this one was filed Mar 7, 2023); a parent in its chain could not be resolved (the next row) | Jul 14, 2035 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +21 days, USPTO patent term adjustment record | Aug 4, 2035 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,301,768, US 11,453,975, US 11,649,585, US 11,970,815, US 12,371,848, US 12,385,181, US 6,466,468) | capped to Jan 31, 2022 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No maintenance fee can end the term early | term ended | High confidence |
| Further caveats on record | The record names parents not resolved: PCTUS2015063545, PCTUS2015063545, 62192477, 62245221 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Jan 31, 2022 | Low confidence |
This family
| US 10,301,768 | In force Jul 2035 | Jul 2035 |
| US 10,287,728 | In force Jul 2035 | Jul 2035 |
| US 11,512,425 | In force Oct 2037 | Oct 2037 |
| US 11,453,975 | In force Jul 2035 | Jul 2035 |
| US 11,649,585 | In force Jul 2035 | Jul 2035 |
| US 12,371,848 | In force Jul 2035 | Jul 2035 |
| US 12,385,181 | Term ended Jan 2022 | Jan 2022 |
| US 12,227,897 | this patent Jan 2022 | Jan 2022 |
8 of 12 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Oct 16, 2024 Reel 68919, frame 292 | Altman, Gregory H.; Mortarino, Enrico | Silk Therapeutics, Inc. | Assignment of Assignor's Interest |
| Oct 16, 2024 Reel 69178, frame 509 | Silk Therapeutics, Inc. | Silk, Inc. | Change of Name |
| Oct 16, 2024 Reel 69211, frame 935 | Silk, Inc. | Evolved by Nature, Inc. | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 21 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 10,301,768, US 11,453,975, US 11,649,585, US 11,970,815, US 12,371,848, US 12,385,181, US 6,466,468.
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2025 in our data have been cited yet, so we show the count and do not rank on it.
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.