Term ended Oct 7, 2025 · Medium confidence
20-year base term ended Oct 7, 2025
Why Medium: A parent in the chain could not be resolved.
Filed Jan 30, 2013 as application 13/753,880 · Granted Dec 30, 2014
Base term, 20 years from filing
Today
Term ended Oct 7, 2025
2005
2026
Clock starts
Oct 7, 2005
Oct 7, 2005
Term ended
Oct 7, 2025
Oct 7, 2025
Granted
Dec 30, 2014
Dec 30, 2014
base term
after the term ends
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.
2 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.
3
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. 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 Oct 7, 2005, when application 11/246,982, the earliest non-provisional in its chain, was filed (this one was filed Jan 30, 2013); a parent in its chain could not be resolved (the next row) | Oct 7, 2025 | 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 | 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 | 2 of 2 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 7, 2025 | Medium confidence |
This family
| US 8,042,211 | In force Aug 2029 | Aug 2029 |
| US 8,918,937 | this patent Oct 2025 | Oct 2025 |
2 of 3 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 |
|---|---|---|---|
| Jan 30, 2013 reel/frame not recorded | Cook, Bennett J.; Darby, Adam J.; Clemons, Jason L.; Stansel, Andrew C.; Soares Neto, Manoel F. | Whirlpool Corporation | Assignment of Assignor's Interest |
| Jan 30, 2013 reel/frame not recorded | Cook, Bennett J.; Darby, Adam J.; Clemons, Jason L.; Stansel, Andrew C.; Soares Neto, Manoel F. | Fisher & Paykel Appliances Limited | Assignment of Assignor's Interest |
| Jan 30, 2013 Reel 29721, frame 549 | Clemons, Jason L.; Cook, Bennett J.; Soares Neto, Manoel F.; Stansel, Andrew C.; Darby, Adam J. | Whirlpool Corporation; Fisher & Paykel Appliances Limited | 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.
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Alerts on its grants, lapses and transfers.
Citations
5
later US patents cite this one
That is below the median of utility patents granted in 2014 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.