Collateral for a security interest recorded Jun 4, 2018 (Citibank, N.A.).
Term ends Sep 16, 2035 · High confidence
20-year base term ends Sep 16, 2035
Filed Feb 2, 2017 as application 15/422,965 · Granted Aug 11, 2020
Base term plus 765 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2015
2035
Clock starts
Sep 16, 2015
Sep 16, 2015
Term ends
Sep 16, 2035
Sep 16, 2035
Granted
Aug 11, 2020
Aug 11, 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
765
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 9,594,112.
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.
6
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 765 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Sep 16, 2015, when application 14/856,353, the earliest non-provisional in its chain, was filed (this one was filed Feb 2, 2017) | Sep 16, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +765 days, USPTO patent term adjustment record | Oct 20, 2037 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,594,112) | capped to Sep 16, 2035 | 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 | Sep 16, 2035 | High confidence |
This family
| US 9,594,112 | In force Sep 2035 | Sep 2035 |
| US 9,470,748 | In force Sep 2035 | Sep 2035 |
| Application PCT/US2015/050504 | PCT application no patent term | no patent term |
| US 9,627,881 | In force Sep 2035 | Sep 2035 |
| US 10,742,022 | this patent Sep 2035 | Sep 2035 |
| Application 16/932,240 | Abandoned not computed | not computed |
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 |
|---|---|---|---|
| Feb 2, 2017 Reel 41159, frame 406 | Schweitzer, Edmund O., III; Mynam, Mangapathirao Venkata; Guzman-casillas, Armando; Kasztenny, Bogdan Z.; Skendzic, Veselin; Whitehead, David E. | Schweitzer Engineering Laboratories, Inc. | Assignment of Assignor's Interest |
| Jun 4, 2018 Reel 47231, frame 253 | Schweitzer Engineering Laboratories, Inc. | Citibank, N.A., as Administrative Agent | Notice of Grant of Security Interest in Patents |
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
Sep 2035
Term ends Sep 16, 2035. Maintenance fees still fall due before then
Note
The 765 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 9,594,112.
Citations
0
later US patents cite this one
That is below 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.