Collateral for a security interest recorded Jan 23, 2024 (Hercules Capital, Inc.).
Term ends Oct 4, 2032 · Low confidence
20-year base term ends Oct 4, 2032
Held by Sight Sciences, Inc.
Filed May 27, 2022 as application 17/827,494 · Granted Apr 4, 2023
Base term, 20 years from filing
Today
2012
2032
Clock starts
Oct 4, 2012
Oct 4, 2012
Term ends
Oct 4, 2032
Oct 4, 2032
Granted
Apr 4, 2023
Apr 4, 2023
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 11,116,660, US 11,344,447, US 11,389,327, to Oct 4, 2032. The term already ends on or before that date, so the cap shortened nothing.
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.
13
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Oct 4, 2012, when application 13/644,748, the earliest non-provisional in its chain, was filed (this one was filed May 27, 2022); a parent in its chain could not be resolved (the next row) | Oct 4, 2032 | 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 | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,116,660, US 11,344,447, US 11,389,327) | resolves to Oct 4, 2032, no earlier than this term, so no change | 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: 17472147, 17098231, 16189882, 14816822 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Oct 4, 2032 | Low confidence |
This family
| US 9,095,412 | In force Mar 2033 | Mar 2033 |
| US 10,179,066 | In force Mar 2034 | Mar 2034 |
| US 10,857,027 | In force Oct 2032 | Oct 2032 |
| Application 17/098,231 | Abandoned not computed | not computed |
| US 11,116,660 | In force Oct 2032 | Oct 2032 |
| Application 17/472,147 | Abandoned not computed | not computed |
| US 11,389,327 | In force Oct 2032 | Oct 2032 |
| US 11,617,679 | this patent Oct 2032 | Oct 2032 |
8 of 13 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 |
|---|---|---|---|
| Nov 4, 2022 Reel 61662, frame 685 | Badawi, David Y.; O'keeffe, Daniel; Badawi, Paul | Sight Sciences, Inc. | Assignment of Assignor's Interest |
| Jan 23, 2024 Reel 66364, frame 162 | Sight Sciences, Inc. | Hercules Capital, Inc., as Agent | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Oct 2032
Term ends Oct 4, 2032. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 11,116,660, US 11,344,447, US 11,389,327, ends no earlier than this term, so it caps nothing.
Citations
24
later US patents cite this one
That is top 5% of utility patents granted in 2023 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.