Term ended May 9, 2025 · High confidence
20-year base term ended May 9, 2025
Held by Arkema Inc.
Filed May 9, 2005 as application 11/124,796 · Granted Jan 9, 2007
Base term, 20 years from filing
Today
Term ended May 9, 2025
2005
2026
Clock starts
May 9, 2005
May 9, 2005
Term ended
May 9, 2025
May 9, 2025
Granted
Jan 9, 2007
Jan 9, 2007
base term
after the term ends
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
None
Term adjustment
No prosecution delay on this record.
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 is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 May 9, 2005, when this application, 11/124,796, was filed | May 9, 2025 | 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 | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | May 9, 2025 | High confidence |
This family
| US 7,160,958 | this patent May 2025 | May 2025 |
| US 7,705,091 | In force Jul 2027 | Jul 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 10, 2005 Reel 16320, frame 502 | Dluzneski, Peter R. | Geo Specialty Chemicals, Inc. | Assignment of Assignor's Interest |
| Feb 6, 2007 Reel 18855, frame 797 | Geo Specialty Chemicals, Inc. | The Cit Group/Business Credit, Inc. | Security Agreement |
| Mar 19, 2007 Reel 19019, frame 894 | Geo Specialty Chemicals, Inc. | Wells Fargo Bank, National Association | Security Agreement |
| Mar 19, 2007 Reel 19019, frame 899 | Geo Specialty Chemicals, Inc. | The Cit Group/Business Credit, Inc. | Security Agreement |
| Feb 19, 2009 Reel 22277, frame 265 | Wells Fargo Bank National Association | Geo Specialty Chemicals, Inc. | Notice of Release of Security Interest in Patents |
| Feb 19, 2009 Reel 22277, frame 287 | The Cit Group/Business Credit, Inc. | Geo Specialty Chemicals, Inc. | Release of Security Interest |
| Apr 2, 2009 Reel 22494, frame 9 | Geo Specialty Chemicals, Inc. | Arkema Inc. | Assignment of Assignor's 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.
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2007 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.