Also listed on Cortex, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Feb 26, 2019 (Foley & Lardner LLP).
Term ends Nov 8, 2037 · High confidence
20-year base term ends Nov 8, 2037
Held by Cortex Composites, Inc.
Filed Nov 8, 2017 as application 15/807,373 · Granted Mar 5, 2019
Base term, 20 years from filing
Today
2017
2037
Clock starts
Nov 8, 2017
Nov 8, 2017
Term ends
Nov 8, 2037
Nov 8, 2037
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
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 Nov 8, 2017, when this application, 15/807,373, was filed | Nov 8, 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 | Nov 8, 2037 | High confidence |
This family
| US 10,221,569 | this patent Nov 2037 | Nov 2037 |
| US 11,098,486 | In force Nov 2037 | Nov 2037 |
| US 11,428,006 | Lapsed on the fee record 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 |
|---|---|---|---|
| Nov 15, 2017 Reel 44134, frame 928 | Krasnoff, Curren E.; Berke, Neal S. | Cortex Composites, Inc. | Assignment of Assignor's Interest |
| Feb 26, 2019 Reel 48447, frame 430 | Cortex Composites, Inc. | Foley & Lardner LLP | Security Interest |
| Jun 24, 2021 Reel 56656, frame 338 | Cortex Composites, Inc. | Burdens Australia, Pty Ltd. | 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
Nov 2037
Term ends Nov 8, 2037.
Citations
9
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.