Collateral for a security interest recorded Feb 5, 2019 (Barclays Bank PLC).
Term ends Nov 26, 2028 · High confidence
20-year base term ends Nov 26, 2028
Held by MacDermid Enthone Inc.
Filed Dec 12, 2012 as application 13/699,910 · Granted Mar 5, 2019
Base term plus 1334 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2008
2028
Clock starts
Nov 26, 2008
Nov 26, 2008
Term ends
Nov 26, 2028
Nov 26, 2028
Granted
Mar 5, 2019
Mar 5, 2019
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
1,334
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,388,824, US 8,771,495.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
5
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 1334 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 2 maintenance fees are paid so far. 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 Nov 26, 2008, when application 12/324,335, the earliest non-provisional in its chain, was filed (this one was filed Dec 12, 2012) | Nov 26, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1334 days, USPTO patent term adjustment record | Jul 22, 2032 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,388,824, US 8,771,495) | capped to Nov 26, 2028 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 26, 2028 | High confidence |
This family
| US 8,388,824 | In force Jun 2031 | Jun 2031 |
| US 10,221,496 | this patent Nov 2028 | Nov 2028 |
| US 8,771,495 | In force Nov 2028 | Nov 2028 |
| US 9,613,858 | In force Nov 2028 | Nov 2028 |
4 of 5 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Dec 5, 2012 Reel 29412, frame 272 | Richardson, Thomas B.; Shao, Wenbo; Lin, Xuan; Wang, Cai; Paneccasio, Vincent; Abys, Joseph A.; Zhang, Yun; Hurtubise, Richard; Wang, Chen | 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 |
| Jan 16, 2019 Reel 48078, frame 646 | Enthone Inc. | MacDermid Enthone Inc. | Change of Name |
| 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 |
| 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
Nov 2028
Term ends Nov 26, 2028. No further fees fall due before then
Note
The 1334 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,388,824, US 8,771,495.
Citations
4
later US patents cite this one
That is above the median of utility patents granted in 2019 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.