Collateral for a security interest recorded Mar 3, 2021 (Bank of Montreal).
Term ends Dec 21, 2035 · High confidence
20-year base term ends Dec 21, 2035
Filed Dec 21, 2015 as application 14/977,590 · Granted Nov 12, 2019
Base term, 20 years from filing
Today
2015
2035
Clock starts
Dec 21, 2015
Dec 21, 2015
Term ends
Dec 21, 2035
Dec 21, 2035
Granted
Nov 12, 2019
Nov 12, 2019
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.
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.
20
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 Dec 21, 2015, when this application, 14/977,590, was filed | Dec 21, 2035 | 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 | Dec 21, 2035 | High confidence |
This family
| Application PCT/US2018/047823 | PCT application no patent term | no patent term |
| US 9,984,866 | In force Jun 2036 | Jun 2036 |
| Application PCT/US2014/028937 | PCT application no patent term | no patent term |
| US 10,471,531 | this patent Dec 2035 | Dec 2035 |
| US 10,384,283 | In force Apr 2037 | Apr 2037 |
| Application PCT/US2015/068274 | PCT application no patent term | no patent term |
| US 9,999,947 | In force Apr 2036 | Apr 2036 |
| Application PCT/US2016/029057 | PCT application no patent term | no patent term |
8 of 20 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 |
|---|---|---|---|
| Apr 30, 2019 Reel 49039, frame 254 | Elliot, Alfred Grant | Component Re-Engineering Company, Inc. | Assignment of Assignor's Interest |
| Apr 30, 2019 Reel 49039, frame 352 | Elliot, Brent | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2035
Term ends Dec 21, 2035. Maintenance fees still fall due before then
Citations
7
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.