Collateral for a security interest recorded Nov 17, 2022 (Citibank, N.A.).
Term ended Jun 4, 2026 · High confidence
20-year base term ended Sep 20, 2025
Held by MacDermid Enthone Inc.
Filed Oct 5, 2005 as application 11/243,876 · Granted Nov 10, 2009
Base term plus 257 days of patent term adjustment (USPTO delay)
Today
Term ended Jun 4, 2026
2005
2026
Clock starts
Sep 20, 2005
Sep 20, 2005
Term ended
Jun 4, 2026
Jun 4, 2026
Granted
Nov 10, 2009
Nov 10, 2009
base term
patent term adjustment
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
257
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.
4
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 257 days past its 20-year base term on 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 Sep 20, 2005, when application 11/230,912, the earliest non-provisional in its chain, was filed (this one was filed Oct 5, 2005) | Sep 20, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +257 days, USPTO patent term adjustment record | Jun 4, 2026 | 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 | Jun 4, 2026 | High confidence |
This family
| US 7,410,899 | Term ended May 2026 | May 2026 |
| US 7,611,987 | Term ended Sep 2026 | Sep 2026 |
| US 7,615,491 | this patent Jun 2026 | Jun 2026 |
| US 7,611,988 | Term ended Oct 2026 | Oct 2026 |
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 |
|---|---|---|---|
| Nov 22, 2005 Reel 16808, frame 287 | Chen, Qingyun; Valverde, Charles; Paneccasio, Vincent; Petrov, Nicolai; Stritch, Daniel; Witt, Christian; Hurtubise, Richard | Enthone Inc. | Assignment of Assignor's Interest |
| Apr 15, 2016 Reel 38439, frame 777 | Enthone Inc. | Barclays Bank PLC, as Collateral Agent | Patent Security Agreement |
| Feb 4, 2019 Reel 48233, frame 141 | Barclays Bank PLC, as Collateral Agent | MacDermid Enthone Inc. (F/K/A Enthone Inc.) | Release of Security Interest |
| Feb 5, 2019 Reel 48261, frame 110 | MacDermid Enthone Inc. (F/K/A Enthone Inc.) | Barclays Bank PLC, as Collateral Agent | Security Interest |
| Feb 15, 2019 Reel 48355, frame 656 | Enthone Inc. | MacDermid Enthone Inc. | Change of Name |
| Nov 17, 2022 Reel 61956, frame 643 | Barclays Bank PLC | Citibank, N.a. | Assignment of Security Interest in Patent Collateral |
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
Note
The 257 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
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.