Collateral for a security interest recorded Apr 17, 2026 (Citibank, N.A.).
Term ends Dec 2, 2034 · High confidence
20-year base term ends Dec 2, 2034
Held by FMC Corporation
Filed Jun 3, 2016 as application 15/101,615 · Granted May 21, 2019
Base term, 20 years from filing
Today
2014
2034
Clock starts
Dec 2, 2014
Dec 2, 2014
Term ends
Dec 2, 2034
Dec 2, 2034
Granted
May 21, 2019
May 21, 2019
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.
1 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.
17
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. 1 of 3 maintenance fees is 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 Dec 2, 2014, when application PCT/US2014/068073, the earliest non-provisional in its chain, was filed (this one was filed Jun 3, 2016) | Dec 2, 2034 | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 2, 2034 | High confidence |
This family
| US 8,969,554 | Lapsed on the fee record Mar 2023 | Mar 2023 |
| US 9,573,909 | Lapsed on the fee record Feb 2025 | Feb 2025 |
| US 10,070,647 | In force Nov 2034 | Nov 2034 |
| US 10,294,202 | this patent Dec 2034 | Dec 2034 |
| US 10,081,608 | Lapsed on the fee record Sep 2022 | Sep 2022 |
| US 12,016,335 | In force Nov 2034 | Nov 2034 |
| Application 16/139,318 | Abandoned not computed | not computed |
| US 11,589,583 | In force Dec 2034 | Dec 2034 |
8 of 17 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 |
|---|---|---|---|
| Sep 7, 2016 Reel 39659, frame 535 | Satterfield, Andrew Duncan; Selby, Thomas Paul; Travis, David Andrew; Patel, Kanu Maganbhai; Taggi, Andrew Edmund | E. I. du Pont de Nemours and Company | Assignment of Assignor's Interest |
| Jul 17, 2018 Reel 46732, frame 16 | E.I. du Pont de Nemours and Company | FMC Corporation | Assignment of Assignor's Interest |
| Apr 17, 2026 Reel 75403, frame 891 | FMC Corporation | Citibank, N.a. | Patent Security Agreement |
| Jun 5, 2026 Reel 75820, frame 557 | FMC Corporation | U.S. Bank Trust Company, National Association | Patent Security Agreement |
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
Dec 2034
Term ends Dec 2, 2034. Maintenance fees still fall due before then
Citations
41
later US patents cite this one
That is top 10% 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.