Also listed on DCL Corporation (BP), LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 3, 2028 · High confidence
20-year base term ends Apr 3, 2028
Held by Pigments Services, Inc.
Filed Oct 22, 2009 as application 12/597,045 · Granted Mar 8, 2011
Base term, 20 years from filing
Today
2008
2028
Clock starts
Apr 3, 2008
Apr 3, 2008
Term ends
Apr 3, 2028
Apr 3, 2028
Granted
Mar 8, 2011
Mar 8, 2011
base term
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
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 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 Apr 3, 2008, when application PCT/US2008/059215, the earliest non-provisional in its chain, was filed (this one was filed Oct 22, 2009) | Apr 3, 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 | Apr 3, 2028 | High confidence |
This family
| Application PCT/US2008/059215 | PCT application no patent term | no patent term |
| US 7,901,503 | this patent Apr 2028 | Apr 2028 |
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 27, 2009 Reel 23428, frame 388 | Vilner, Stanislav | Sun Chemical Corporation | Assignment of Assignor's Interest |
| Dec 20, 2010 Reel 25530, frame 142 | Ortalano, Darren Mark | Sun Chemical Corporation | Assignment of Assignor's Interest |
| Sep 2, 2021 Reel 57367, frame 799 | DCL Corporation (BP), LLC | Wells Fargo Bank, National Association | Security Interest |
| Sep 30, 2021 Reel 57659, frame 426 | Sun Chemical Corporation | DCL Corporation (BP), LLC | Assignment of Assignor's Interest |
| Dec 20, 2021 Reel 58437, frame 314 | DCL Corporation (BP), LLC | Virtus Group, LP | Security Interest |
| Jul 1, 2022 Reel 60952, frame 618 | Virtus Group, LP | Delaware Trust Company | Agreement of Agent Resignation, Appointment and Acceptance |
| Dec 28, 2022 Reel 62231, frame 919 | DCL Corporation (BP), LLC | Wells Fargo Bank, National Association | Security Agreement |
| Apr 17, 2023 Reel 63350, frame 453 | Pigments Services, Inc. | Wells Fargo Bank, N.a. | Security Agreement |
| May 2, 2023 Reel 63512, frame 733 | Wells Fargo Bank, National Association | DCL Corporation (BP), LLC | Release of Security Interest |
| May 11, 2023 Reel 63618, frame 404 | Delaware Trust Company (as Successor in Interests to Virtus Group LP) | DCL Corporation (BP), LLC | Release of Security Interest |
| May 11, 2023 Reel 63618, frame 459 | Pigments Services, Inc. | Delaware Trust Company | Security Interest |
| May 12, 2023 Reel 63629, frame 788 | H.I.G. Colors Holdings, Inc.; H.I.G. Colors, Inc.; DCL Holdings (USA), Inc.; DCL Corporation (USA), LLC; DCL Corporation (BP), LLC; Dominion Colour Corporation (USA); DCL Corporation | Pigments Services, 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.
What's changing
Apr 2028
Term ends Apr 3, 2028. No further fees fall due before then
Citations
5
later US patents cite this one
That is below the median of utility patents granted in 2011 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.