Collateral for a security interest recorded Dec 20, 2020 (BMO Harris Bank N.A.).
Term ends Oct 26, 2031 · High confidence
20-year base term ends Sep 22, 2031
Held by Rytec Corporation
Filed Sep 22, 2011 as application 13/240,446 · Granted Nov 18, 2014
Base term plus 34 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
Sep 22, 2011
Sep 22, 2011
Term ends
Oct 26, 2031
Oct 26, 2031
Granted
Nov 18, 2014
Nov 18, 2014
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
34
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
3
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. 2 of 3 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 22, 2011, when this application, 13/240,446, was filed | Sep 22, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +34 days, USPTO patent term adjustment record | Oct 26, 2031 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 26, 2031 | High confidence |
This family
| US 8,887,790 | this patent Oct 2031 | Oct 2031 |
| Application PCT/US2012/024293 | PCT application no patent term | no patent term |
| US 9,322,212 | In force Sep 2031 | Sep 2031 |
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 22, 2011 Reel 26950, frame 439 | Drifka, Brian Norbert, MR. | Rytec Corporation | Assignment of Assignor's Interest |
| Dec 20, 2020 Reel 54703, frame 525 | Rytec Corporation | BMO Harris Bank N.A. | Security Interest |
| Jul 23, 2024 Reel 68061, frame 48 | BMO Bank N.A. (F/K/A/ BMO Harris Bank N.A.) | Rytec Corporation | Release of 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 2031
Term ends Oct 26, 2031.
Note
The 34 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
19
later US patents cite this one
That is top 25% of utility patents granted in 2014 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.