Collateral for a security interest recorded Mar 14, 2022 (PNC Bank, National Association).
Term ends Sep 5, 2034 · High confidence
20-year base term ends Sep 5, 2034
Filed Mar 5, 2019 as application 16/293,278 · Granted Jun 20, 2023
Base term, 20 years from filing
Today
2014
2034
Clock starts
Sep 5, 2014
Sep 5, 2014
Term ends
Sep 5, 2034
Sep 5, 2034
Granted
Jun 20, 2023
Jun 20, 2023
base term
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 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.
10
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. 0 of 2 maintenance fees are 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 Sep 5, 2014, when application 14/478,697, the earliest non-provisional in its chain, was filed (this one was filed Mar 5, 2019) | Sep 5, 2034 | 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 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 5, 2034 | High confidence |
This family
| Application 14/478,697 | Abandoned not computed | not computed |
| US 10,900,745 | In force Sep 2034 | Sep 2034 |
| Application PCT/US2016/037594 | PCT application no patent term | no patent term |
| Application 62/638,549 | Provisional application no patent term | no patent term |
| US 11,680,772 | this patent Sep 2034 | Sep 2034 |
| Application 16/984,857 | Abandoned not computed | not computed |
| US 12,085,361 | In force Aug 2036 | Aug 2036 |
| Application 17/719,762 | Abandoned not computed | not computed |
8 of 10 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 |
|---|---|---|---|
| Sep 10, 2019 Reel 50326, frame 258 | Hamilton, Samuel J; Hamilton, David M | Sheltered Wings, Inc. D/B/A Vortex Optics | Assignment of Assignor's Interest |
| Mar 14, 2022 Reel 59364, frame 670 | Sheltered Wings, Inc., D/B/A Vortex Optics, a Wisconsin Corporation | Pnc Bank, National Association | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Sep 2034
Term ends Sep 5, 2034. Maintenance fees still fall due before then
Citations
2
later US patents cite this one
That is above the median 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.