Also listed on BASF Performance Products LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Feb 15, 2028 · High confidence
20-year base term ends Feb 15, 2028
Held by Sun Chemical Corporation
Filed Feb 15, 2008 as application 12/070,202 · Granted Sep 7, 2010
Base term, 20 years from filing
Today
2008
2028
Clock starts
Feb 15, 2008
Feb 15, 2008
Term ends
Feb 15, 2028
Feb 15, 2028
Granted
Sep 7, 2010
Sep 7, 2010
base term
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.
This patent's term is its 20-year base term, with no adjustment for 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 Feb 15, 2008, when this application, 12/070,202, was filed | Feb 15, 2028 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Feb 15, 2028 | High confidence |
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 9, 2008 Reel 21079, frame 759 | Adams, John; Reinicker, Roger; Cole, Damien Thurber; Finnegan, Garard | Ciba Corp. | Assignment of Assignor's Interest |
| May 6, 2023 Reel 63558, frame 155 | BASF Performance Products LLC | BASF Corporation | Merger |
| May 6, 2023 Reel 63558, frame 162 | BASF Corporation | BASF Colors & Effects USA LLC | Nunc Pro Tunc Assignment |
| May 6, 2023 Reel 63558, frame 165 | BASF Colors & Effects USA LLC | Colors & Effects USA LLC | Change of Name |
| May 6, 2023 Reel 63558, frame 176 | Colors & Effects USA LLC | Sun Chemical Corporation | Nunc Pro Tunc Assignment |
| May 6, 2023 Reel 63559, frame 342 | Ciba Corporation | BASF Performance Products LLC | Change of Name |
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
Feb 2028
Term ends Feb 15, 2028. No further fees fall due before then
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2010 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.