Also listed on Advansix Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Aug 14, 2026 (Citizens Bank, N.A.).
Term ends Apr 8, 2028 · High confidence
20-year base term ends Oct 26, 2027
Held by Advansix Resins & Chemicals LLC
Filed Oct 26, 2007 as application 11/924,634 · Granted Aug 18, 2009
Base term plus 165 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Oct 26, 2007
Oct 26, 2007
Term ends
Apr 8, 2028
Apr 8, 2028
Granted
Aug 18, 2009
Aug 18, 2009
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
165
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 165 days past its 20-year base term on prosecution delay. 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 Oct 26, 2007, when this application, 11/924,634, was filed | Oct 26, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +165 days, USPTO patent term adjustment record | Apr 8, 2028 | 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 | Apr 8, 2028 | High confidence |
This family
| US 7,575,365 | this patent Apr 2028 | Apr 2028 |
| Application PCT/US2008/079697 | PCT application no patent term | no patent term |
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 |
|---|---|---|---|
| Oct 26, 2007 Reel 20019, frame 446 | Jung, Philip O | UOP LLC | Assignment of Assignor's Interest |
| Oct 13, 2016 Reel 40337, frame 820 | Honeywell International Inc. | Advansix Resins & Chemicals LLC | Assignment of Assignor's Interest |
| Oct 17, 2016 Reel 40382, frame 909 | Advansix Inc.; Advansix Resins & Chemicals LLC | Bank of America, N.A., as Administrative Agent | Security Interest |
| Oct 27, 2021 Reel 57940, frame 794 | Advansix Inc.; Advansix Resins & Chemicals LLC | Truist Bank, As Administrative Agent | Security Interest |
| Oct 27, 2021 Reel 57941, frame 536 | Bank of America, N.A., as Administrative Agent | Advansix Inc.; Advansix Resins & Chemicals LLC | Release of Security Interest |
| Oct 27, 2021 reel/frame not recorded | Bank of America, N.A., as Administrative Agent | Advansix Inc. | Release of Security Interest |
| Oct 27, 2021 reel/frame not recorded | Bank of America, N.A., as Administrative Agent | Advansix Resins & Chemicals LLC | Release of Security Interest |
| Aug 14, 2026 Reel 76163, frame 178 | Advansix Inc.; Advansix Resins & Chemicals LLC | Citizens Bank, N.A., as Administrative Agent | Security Interest |
| Aug 14, 2026 reel/frame not recorded | Truist Bank | Advansix Inc. | Release of Security Interest |
| Aug 14, 2026 reel/frame not recorded | Truist Bank | Advansix Resins & Chemicals LLC | Release of Security Interest |
| Aug 14, 2026 Reel 76510, frame 1 | Truist Bank | Advansix Inc.; Advansix Resins & Chemicals LLC | 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
Apr 2028
Term ends Apr 8, 2028. No further fees fall due before then
Note
The 165 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
8
later US patents cite this one
That is below the median of utility patents granted in 2009 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.