Term ends May 13, 2033 · Low confidence
20-year base term ends May 13, 2033
Held by Cellectis
Filed Nov 6, 2015 as application 14/889,686 · Granted Apr 19, 2022
Base term plus 34 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2013
2033
Clock starts
May 13, 2013
May 13, 2013
Term ends
May 13, 2033
May 13, 2033
Granted
Apr 19, 2022
Apr 19, 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
34
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 10,426,795, US 10,874,693, US 11,077,144, US 11,311,575.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
30
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 34 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 2 maintenance fees is paid so far. 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 May 13, 2013, when applications 13/892,805, PCT/US2013/040755 and PCT/US2013/040766, the earliest non-provisional applications in its chain, were filed (this one was filed Nov 6, 2015); a parent in its chain could not be resolved (the next row) | May 13, 2033 | 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 | +34 days, USPTO patent term adjustment record | Jun 16, 2033 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,426,795, US 10,874,693, US 11,077,144, US 11,311,575) | capped to May 13, 2033 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | In force | High confidence |
| Further caveats on record | The record names parents not resolved: PCTUS2013040755, PCTUS2013040766 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | May 13, 2033 | Low confidence |
This family
| US 11,603,539 | In force Sep 2033 | Sep 2033 |
| Application PCT/US2013/040755 | PCT application no patent term | no patent term |
| Application PCT/US2013/040766 | PCT application no patent term | no patent term |
| Application 13/942,191 | Abandoned not computed | not computed |
| Application PCT/US2013/058005 | PCT application no patent term | no patent term |
| US 10,342,829 | In force May 2033 | May 2033 |
| US 10,426,795 | In force Aug 2035 | Aug 2035 |
| US 11,304,975 | this patent May 2033 | May 2033 |
8 of 30 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 |
|---|---|---|---|
| May 31, 2017 Reel 42642, frame 276 | Galetto, Roman; Gouble, Agnes; Grosse, Stephanie; Schiffer-Mannioui, Cècile; Poirot, Laurent; Scharenberg, Andrew; Smith, Julianne | Cellectis | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
May 2033
Term ends May 13, 2033. Maintenance fees still fall due before then
Note
The 34 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 10,426,795, US 10,874,693, US 11,077,144, US 11,311,575.
Citations
15
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.