Collateral for a security interest recorded Jan 28, 2019 (Midcap Financial Trust).
Term ends Mar 14, 2032 · High confidence
20-year base term ends Jan 4, 2032
Held by Sight Sciences, Inc.
Filed Dec 11, 2015 as application 14/967,116 · Granted Apr 13, 2021
Base term plus 70 days of patent term adjustment (USPTO delay)
Today
2012
2032
Clock starts
Jan 4, 2012
Jan 4, 2012
Term ends
Mar 14, 2032
Mar 14, 2032
Granted
Apr 13, 2021
Apr 13, 2021
base term
patent term adjustment
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
70
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
21
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 70 days past its 20-year base term on prosecution delay. 1 of 2 maintenance fees is paid so far. 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 Jan 4, 2012, when application 13/343,407, the earliest non-provisional in its chain, was filed (this one was filed Dec 11, 2015) | Jan 4, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +70 days, USPTO patent term adjustment record | Mar 14, 2032 | 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 | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 14, 2032 | High confidence |
This family
| US 9,724,230 | In force Jan 2032 | Jan 2032 |
| US 9,510,972 | In force Feb 2032 | Feb 2032 |
| Application PCT/US2012/059384 | PCT application no patent term | no patent term |
| US 10,973,680 | this patent Mar 2032 | Mar 2032 |
| US 9,844,459 | In force Feb 2032 | Feb 2032 |
| US 9,642,743 | In force Jan 2032 | Jan 2032 |
| Application PCT/US2016/065876 | PCT application no patent term | no patent term |
| US 11,285,040 | In force Jun 2033 | Jun 2033 |
8 of 21 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 |
|---|---|---|---|
| Mar 11, 2016 Reel 37960, frame 780 | Badawi, David; Badawi, Paul; Harshman, Scott; O'keeffe, Daniel | Sight Sciences, Inc. | Assignment of Assignor's Interest |
| Jan 28, 2019 Reel 48149, frame 209 | Sight Sciences, Inc. | Midcap Financial Trust, As Agent | Security Agreement (TERM Loan) |
| Jan 28, 2019 Reel 49670, frame 542 | Sight Sciences, Inc. | Midcap Financial Trust, As Agent | Security Agreement (Revolving Loan) |
| Jul 24, 2023 Reel 64354, frame 155 | Midcap Funding IV Trust | Sight Sciences, Inc. | Release of Security 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
Mar 2032
Term ends Mar 14, 2032. Maintenance fees still fall due before then
Note
The 70 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
44
later US patents cite this one
That is top 5% 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.