Term ends Jun 24, 2031 · Medium confidence
20-year base term ends May 27, 2031
Why Medium: A parent in the chain could not be resolved.
Held by Transtex LLC
Filed Apr 20, 2018 as application 15/958,342 · Granted Mar 10, 2020
Base term plus 28 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
May 27, 2011
May 27, 2011
Term ends
Jun 24, 2031
Jun 24, 2031
Granted
Mar 10, 2020
Mar 10, 2020
base term
patent term adjustment
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
28
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
19
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 runs 28 days past its 20-year base term on prosecution delay. 1 of 2 maintenance fees is paid so far. Confidence: Medium. 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 May 27, 2011, when application 13/117,891, the earliest non-provisional in its chain, was filed (this one was filed Apr 20, 2018); a parent in its chain could not be resolved (the next row) | May 27, 2031 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +28 days, USPTO patent term adjustment record | Jun 24, 2031 | 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 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 24, 2031 | Medium confidence |
This family
| US 8,303,025 | In force May 2031 | May 2031 |
| US 9,161,249 | In force May 2034 | May 2034 |
| US 8,727,425 | In force May 2031 | May 2031 |
| US 9,211,919 | In force May 2031 | May 2031 |
| US 9,751,573 | In force May 2031 | May 2031 |
| US 9,975,583 | In force May 2031 | May 2031 |
| US 10,189,514 | In force Jul 2031 | Jul 2031 |
| US 10,583,873 | this patent Jun 2031 | Jun 2031 |
8 of 19 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 |
|---|---|---|---|
| Jun 19, 2018 Reel 46127, frame 395 | Senatro, Richard P. | Strehl, LLC | Assignment of Assignor's Interest |
| Jun 19, 2023 Reel 64022, frame 141 | Strehl, LLC | Fleetaero, LLC | Change of Name |
| Apr 23, 2026 Reel 74457, frame 21 | Fleetaero, LLC | Transtex LLC | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jun 2031
Term ends Jun 24, 2031. Maintenance fees still fall due before then
Note
The 28 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
3
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.