Lapsed Dec 28, 2025 on the fee record · High confidence
20-year base term ends Aug 7, 2035
First maintenance fee unpaid; grace period ended.
Held by Quantum-Si Incorporated
Filed Aug 4, 2020 as application 16/984,537 · Granted Dec 28, 2021
Base term, 20 years from filing
Today
Lapsed Dec 28, 2025
2015
2035
Clock starts
Aug 7, 2015
Aug 7, 2015
No longer in force
Dec 28, 2025
Dec 28, 2025
Granted
Dec 28, 2021
Dec 28, 2021
Term would have run to
Aug 7, 2035
Aug 7, 2035
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
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.
8
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 Aug 7, 2035: its 20-year base term, with no adjustment for prosecution delay. 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 Aug 7, 2015, when application 14/821,656, the earliest non-provisional in its chain, was filed (this one was filed Aug 4, 2020) | Aug 7, 2035 | 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 | 0 of 3 maintenance fees paid | lapsed Dec 28, 2025 | High confidence |
| Computed term end | The steps above, in order | Dec 28, 2025 | High confidence |
This family
| US 9,759,658 | In force Oct 2035 | Oct 2035 |
| US 9,945,779 | In force no later than Aug 2035 | no later than Aug 2035 |
| US 10,775,305 | In force Dec 2035 | Dec 2035 |
| US 11,567,006 | In force no later than Jan 2036 | no later than Jan 2036 |
| US 11,209,363 | this patent Dec 2025 | Dec 2025 |
| US 11,719,636 | In force Aug 2035 | Aug 2035 |
| US 12,203,854 | In force Aug 2035 | Aug 2035 |
7 of 8 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 21, 2020 Reel 54121, frame 261 | Rothberg, Jonathan M.; Fife, Keith G.; Boisvert, David | Quantum-Si Incorporated | 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.
Citations
18
later US patents cite this one
That is top 10% of utility patents granted in 2021 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.