Term ends Jul 10, 2033 · High confidence
20-year base term ends Jan 14, 2033
Held by Eaton Intelligent Power Limited
Filed Jan 14, 2013 as application 13/741,039 · Granted Apr 12, 2016
Base term plus 177 days of patent term adjustment (USPTO delay)
Today
2013
2033
Clock starts
Jan 14, 2013
Jan 14, 2013
Term ends
Jul 10, 2033
Jul 10, 2033
Granted
Apr 12, 2016
Apr 12, 2016
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
177
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
7
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 177 days past its 20-year base term on 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 Jan 14, 2013, when this application, 13/741,039, was filed | Jan 14, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +177 days, USPTO patent term adjustment record | Jul 10, 2033 | 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 | Jul 10, 2033 | High confidence |
This family
| US 8,534,625 | Lapsed on the fee record Sep 2025 | Sep 2025 |
| Application 13/187,349 | Abandoned not computed | not computed |
| Application PCT/US2012/047691 | PCT application no patent term | no patent term |
| US 9,309,088 | this patent Jul 2033 | Jul 2033 |
| US 9,239,067 | In force May 2031 | May 2031 |
| Application PCT/US2014/011533 | PCT application no patent term | no patent term |
| US 9,611,874 | Lapsed on the fee record Apr 2025 | Apr 2025 |
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 |
|---|---|---|---|
| May 15, 2014 Reel 32901, frame 138 | Witherbee, Martin | Cooper Technologies Company | Assignment of Assignor's Interest |
| Feb 1, 2019 Reel 48207, frame 819 | Cooper Technologies Company | Eaton Intelligent Power Limited | Assignment of Assignor's Interest |
| Mar 11, 2019 Reel 48655, frame 114 | Cooper Technologies Company | Eaton Intelligent Power Limited | Corrective Assignment to Correct the Cover Sheet to Remove Application No. 15567271 Previously Recorded on Reel 048207 Frame 0819. Assignor(S) Hereby Confirms the Assignment. |
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
Jul 2033
Term ends Jul 10, 2033. Maintenance fees still fall due before then
Note
The 177 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2016 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.