Term ends Jun 10, 2031 · Medium confidence
20-year base term ends May 4, 2031
Why Medium: A parent in the chain could not be resolved.
Held by Peroxychem LLC
Filed Oct 31, 2011 as application 13/285,341 · Granted Apr 14, 2015
Base term plus 37 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
May 4, 2011
May 4, 2011
Term ends
Jun 10, 2031
Jun 10, 2031
Granted
Apr 14, 2015
Apr 14, 2015
base term
patent term adjustment
fee events
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
37
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
2
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 37 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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 May 4, 2011, when application 13/100,862, the earliest non-provisional in its chain, was filed (this one was filed Oct 31, 2011); a parent in its chain could not be resolved (the next row) | May 4, 2031 | 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 | +37 days, USPTO patent term adjustment record | Jun 10, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 10, 2031 | Medium confidence |
This family
| US 9,005,669 | this patent Jun 2031 | Jun 2031 |
1 of 2 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 |
|---|---|---|---|
| Jun 17, 2014 Reel 33183, frame 764 | Synergy Technologies, Inc. | Ridgestone Bank | Security Interest |
| Mar 3, 2015 Reel 35080, frame 1 | Allen, Randall R.; Knocke, James; Parker, Carleton J., III; York, Jason; Didato, Dean T. | Synergy Technologies, Inc. | Assignment of Assignor's Interest |
| Sep 19, 2018 Reel 46912, frame 52 | Synergy Technologies, Inc. | Peroxychem LLC | Assignment of Assignor's Interest |
| Oct 2, 2019 Reel 50605, frame 305 | Peroxychem LLC | Barclays Bank PLC, as Administrative Agent | Security Interest |
| Feb 3, 2020 Reel 51777, frame 957 | Barclays Bank PLC, as Administrative Agent | Peroxychem LLC | Release of Security Interest in Patents Recorded at R/F 050605/0305 |
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 2031
Term ends Jun 10, 2031. No further fees fall due before then
Note
The 37 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
10
later US patents cite this one
That is above the median of utility patents granted in 2015 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.