Collateral for a security interest recorded Dec 20, 2020 (BMO Harris Bank N.A.).
Term ends Jun 20, 2028 · High confidence
20-year base term ends Dec 27, 2027
Held by Rytec Corporation
Filed Jun 26, 2009 as application 12/519,665 · Granted Jan 29, 2013
Base term plus 176 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Dec 27, 2007
Dec 27, 2007
Term ends
Jun 20, 2028
Jun 20, 2028
Granted
Jan 29, 2013
Jan 29, 2013
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
176
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,316,915, to Jun 20, 2028. The term already ends on or before that date, so the cap shortened nothing.
3 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 176 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees are recorded paid; no more fees are due. 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 Dec 27, 2007, when application PCT/US2007/026429, the earliest non-provisional in its chain, was filed (this one was filed Jun 26, 2009) | Dec 27, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +176 days, USPTO patent term adjustment record | Jun 20, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,316,915) | resolves to Jun 20, 2028, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 20, 2028 | High confidence |
This family
| Application PCT/US2007/026429 | PCT application no patent term | no patent term |
| US 8,360,132 | this patent Jun 2028 | Jun 2028 |
| US 9,097,053 | In force Dec 2027 | Dec 2027 |
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 |
|---|---|---|---|
| Jun 26, 2009 Reel 22881, frame 949 | Drifka, Brian Norbert | 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
Jun 2028
Term ends Jun 20, 2028. No further fees fall due before then
Note
The 176 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,316,915, ends no earlier than this term, so it caps nothing.
Citations
29
later US patents cite this one
That is top 25% of utility patents granted in 2013 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.