Lapsed Mar 15, 2026 on the fee record · High confidence
20-year base term ends May 17, 2036
First maintenance fee unpaid; grace period ended.
Held by Repligen Corporation
Filed Dec 17, 2019 as application 16/718,084 · Granted Mar 15, 2022
Base term, 20 years from filing, plus 88 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Mar 15, 2026
2016
2036
Clock starts
May 17, 2016
May 17, 2016
No longer in force
Mar 15, 2026
Mar 15, 2026
Granted
Mar 15, 2022
Mar 15, 2022
Term would have run to
May 17, 2036
May 17, 2036
base term
after the term ends
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
88
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 10,309,818.
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.
9
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to May 17, 2036: its 20-year base term plus 88 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 17, 2016, when application PCT/US2016/032895, the earliest non-provisional in its chain, was filed (this one was filed Dec 17, 2019) | May 17, 2036 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +88 days, USPTO patent term adjustment record | Aug 13, 2036 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,309,818) | capped to May 17, 2036 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | lapsed Mar 15, 2026 | High confidence |
| Computed term end | The steps above, in order | Mar 15, 2026 | High confidence |
This family
| US 9,746,391 | Lapsed on the fee record Aug 2025 | Aug 2025 |
| US 10,267,701 | In force Oct 2034 | Oct 2034 |
| US 10,309,818 | In force May 2036 | May 2036 |
| US 10,502,650 | In force Oct 2034 | Oct 2034 |
| US 10,557,739 | In force no later than May 2036 | no later than May 2036 |
| US 11,274,954 | this patent Mar 2026 | Mar 2026 |
| Application 17/667,202 | Abandoned not computed | not computed |
7 of 9 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 |
|---|---|---|---|
| Dec 8, 2020 Reel 54580, frame 754 | Alphinity, LLC | Repligen Corporation | Assignment of Assignor's Interest |
| Sep 19, 2024 Reel 68636, frame 413 | Alphinity, LLC | Repligen Corporation | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 88 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 10,309,818.
Citations
1
later US patent cites this one
That is below the median 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.