Collateral for a security interest recorded Mar 8, 2023 (VFP, LLC).
Term ends Mar 20, 2033 · High confidence
20-year base term ends Mar 20, 2033
Held by Linear Labs, Inc.
Filed Jul 23, 2017 as application 15/657,173 · Granted Apr 9, 2019
Base term, 20 years from filing
Today
2013
2033
Clock starts
Mar 20, 2013
Mar 20, 2013
Term ends
Mar 20, 2033
Mar 20, 2033
Granted
Apr 9, 2019
Apr 9, 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.
2 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.
22
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. 2 of 3 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 Mar 20, 2013, when application 13/848,048, the earliest non-provisional in its chain, was filed (this one was filed Jul 23, 2017) | Mar 20, 2033 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 20, 2033 | High confidence |
This family
| US 9,419,483 | In force Oct 2034 | Oct 2034 |
| Application 14/608,232 | Abandoned not computed | not computed |
| US 10,263,480 | In force Oct 2033 | Oct 2033 |
| US 10,284,029 | In force Jan 2034 | Jan 2034 |
| US 10,476,362 | In force Sep 2037 | Sep 2037 |
| Application PCT/US2016/026776 | PCT application no patent term | no patent term |
| Application PCT/US2016/039673 | PCT application no patent term | no patent term |
| Application 15/413,228 | Abandoned not computed | not computed |
8 of 22 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 18, 2017 Reel 43610, frame 631 | Hunstable, Fred E. | Linear Labs, Inc. | Assignment of Assignor's Interest |
| Sep 27, 2018 Reel 47156, frame 869 | Hunstable, Fred E. | Linear Labs, LLC | Corrective Assignment to Correct the Assignee Entity Type from Inc. to LLC, and State of Incorporation from Texas to Delaware Previously Recorded on Reel 043610 Frame 0631. Assignor(S) Hereby Confirms the Assignment. |
| Feb 12, 2020 Reel 51906, frame 261 | Linear Labs, LLC | Linear Labs, Inc. | Conversion |
| Mar 8, 2023 Reel 62992, frame 725 | Linear Labs, Inc. | VFP, LLC | 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
Mar 2033
Term ends Mar 20, 2033. Maintenance fees still fall due before then
Citations
47
later US patents cite this one
That is top 5% 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.