Lapsed Aug 30, 2026 on the fee record · High confidence
20-year base term ends Nov 8, 2037
First maintenance fee unpaid; grace period ended.
Held by Cortex Composites, Inc.
Filed May 19, 2020 as application 16/878,122 · Granted Aug 30, 2022
Base term, 20 years from filing, plus 77 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Aug 30, 2026
2017
2037
Clock starts
Nov 8, 2017
Nov 8, 2017
No longer in force
Aug 30, 2026
Aug 30, 2026
Granted
Aug 30, 2022
Aug 30, 2022
Term would have run to
Nov 8, 2037
Nov 8, 2037
base term
after the term ends
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
77
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 10,221,569, US 11,098,486.
0 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.
Its term would have run to Nov 8, 2037: its 20-year base term plus 77 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 8, 2017, when application 15/807,373, the earliest non-provisional in its chain, was filed (this one was filed May 19, 2020) | Nov 8, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +77 days, USPTO patent term adjustment record | Jan 24, 2038 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,221,569, US 11,098,486) | capped to Nov 8, 2037 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | lapsed Aug 30, 2026 | High confidence |
| Computed term end | The steps above, in order | Aug 30, 2026 | High confidence |
This family
| US 10,221,569 | In force Nov 2037 | Nov 2037 |
| US 11,098,486 | In force Nov 2037 | Nov 2037 |
| US 11,428,006 | this patent Aug 2026 | Aug 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 |
|---|---|---|---|
| Jun 24, 2021 Reel 56656, frame 338 | Cortex Composites, Inc. | Burdens Australia, Pty Ltd. | Security Interest |
| Jan 3, 2022 Reel 58525, frame 359 | Krasnoff, Curren E.; Berke, Neal S. | Cortex Composites, 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 77 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 10,221,569, US 11,098,486.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2022 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.