Collateral for a security interest recorded Mar 3, 2021 (Bank of Montreal).
Term ends Nov 20, 2032 · Medium confidence
20-year base term ends Nov 20, 2032
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 8,684,256), so the cap could be lower.
Filed Nov 20, 2012 as application 13/682,171 · Granted Jan 31, 2017
Base term, 20 years from filing
Today
2012
2032
Clock starts
Nov 20, 2012
Nov 20, 2012
Term ends
Nov 20, 2032
Nov 20, 2032
Granted
Jan 31, 2017
Jan 31, 2017
base term
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,684,256, US 8,789,743, to Nov 20, 2032. The term already ends on or before that date, so the cap shortened nothing.
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.
18
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 of 3 maintenance fees are 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 Nov 20, 2012, when this application, 13/682,171, was filed | Nov 20, 2032 | 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 | Disclaimer resolved from the filed document (refs US 8,684,256, US 8,789,743) | resolves to Nov 20, 2032, no earlier than this term, so no change | Medium 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 | Nov 20, 2032 | Medium confidence |
This family
| US 8,932,690 | In force Jul 2032 | Jul 2032 |
| Application PCT/US2012/048746 | PCT application no patent term | no patent term |
| Application 13/682,079 | Abandoned not computed | not computed |
| US 8,684,256 | In force no later than Nov 2032 | no later than Nov 2032 |
| US 9,315,424 | In force (reinstated) Jul 2033 | Jul 2033 |
| US 8,789,743 | In force Nov 2032 | Nov 2032 |
| US 9,556,074 | this patent Nov 2032 | Nov 2032 |
| Application PCT/US2012/067491 | PCT application no patent term | no patent term |
8 of 18 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 |
|---|---|---|---|
| Feb 25, 2013 Reel 29863, frame 779 | Elliot, Alfred Grant; Elliot, Brent Donald Alfred; Balma, Frank; Schuster, Richard Erich; Rex, Dennis George; Veytser, Alexander | Component Re-Engineering Company, Inc. | Assignment of Assignor's Interest |
| Sep 16, 2020 Reel 53791, frame 283 | Component Re-Engineering Company, Inc. | Watlow Electric Manufacturing Company | Assignment of Assignor's Interest |
| Mar 3, 2021 Reel 55479, frame 708 | Watlow Electric Manufacturing Company | Bank Of Montreal, As Administrative Agent | Patent Security Agreement (Short Form) |
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
Nov 2032
Term ends Nov 20, 2032. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,684,256, US 8,789,743, ends no earlier than this term, so it caps nothing.
Citations
5
later US patents cite this one
That is above the median of utility patents granted in 2017 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.