Collateral for a security interest recorded Aug 27, 2019 (Wells Fargo Capital Finance, LLC).
Term ends Oct 17, 2037 · High confidence
20-year base term ends Oct 17, 2037
Filed Aug 22, 2018 as application 16/078,703 · Granted Nov 17, 2020
Base term, 20 years from filing
Today
2017
2037
Clock starts
Oct 17, 2017
Oct 17, 2017
Term ends
Oct 17, 2037
Oct 17, 2037
Granted
Nov 17, 2020
Nov 17, 2020
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.
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.
3
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 Oct 17, 2017, when application PCT/US2017/056853, the earliest non-provisional in its chain, was filed (this one was filed Aug 22, 2018) | Oct 17, 2037 | 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 | Oct 17, 2037 | High confidence |
This family
| Application PCT/US2017/056853 | PCT application no patent term | no patent term |
| US 10,836,904 | this patent Oct 2037 | Oct 2037 |
| US 11,851,564 | In force Nov 2038 | Nov 2038 |
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 |
|---|---|---|---|
| Aug 30, 2018 Reel 46753, frame 929 | Osborn, Shawn J.; Carter, Christopher M. | Ascend Performance Materials Operations LLC | Assignment of Assignor's Interest |
| Aug 27, 2019 Reel 50177, frame 150 | Ascend Performance Materials Operations LLC | Wells Fargo Capital Finance, LLC | Security Interest |
| Aug 28, 2019 Reel 50207, frame 184 | Ascend Performance Materials Operations LLC | Bank Of America, N.a. | Security Interest |
| Apr 10, 2025 Reel 70811, frame 705 | Bank Of America, N.a. | Wilmington Savings Fund Society, FSB | Security Interest |
| Dec 19, 2025 Reel 74007, frame 183 | Ascend Performance Materials Operations LLC | Wells Fargo Bank, National Association | Security Interest |
| Dec 23, 2025 Reel 74050, frame 90 | Wilmington Savings Fund Society, FSB | Ascend Performance Materials Operations LLC | Release of Security Interest |
| Dec 23, 2025 Reel 74056, frame 183 | Ascend Performance Materials Operations LLC | Wilmington Savings Fund Society, FSB | Security 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Oct 2037
Term ends Oct 17, 2037. Maintenance fees still fall due before then
Citations
5
later US patents cite this one
That is above the median of utility patents granted in 2020 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.