Lapsed Feb 25, 2022 on the fee record · High confidence
20-year base term ends Feb 23, 2030
Second maintenance fee unpaid; grace period ended.
Held by The Watt Stopper, Inc.
Filed Oct 19, 2011 as application 13/276,963 · Granted Feb 25, 2014
Base term, 20 years from filing, plus 293 days of patent term adjustment (USPTO delay)
Today
Lapsed Feb 25, 2022
2010
2030
Clock starts
Feb 23, 2010
Feb 23, 2010
No longer in force
Feb 25, 2022
Feb 25, 2022
Granted
Feb 25, 2014
Feb 25, 2014
Term would have run to
Dec 13, 2030
Dec 13, 2030
base term
patent term adjustment
after the term ends
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
293
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
22
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Dec 13, 2030: its 20-year base term plus 293 days of term adjustment for prosecution delay. 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 Feb 23, 2010, when application 12/711,192, the earliest non-provisional in its chain, was filed (this one was filed Oct 19, 2011) | Feb 23, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +293 days, USPTO patent term adjustment record | Dec 13, 2030 | 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 | lapsed Feb 25, 2022 | High confidence |
| Computed term end | The steps above, in order | Feb 25, 2022 | High confidence |
This family
| US 8,299,734 | Lapsed on the fee record Oct 2024 | Oct 2024 |
| US 8,368,328 | Lapsed on the fee record Feb 2021 | Feb 2021 |
| US 8,659,246 | this patent Feb 2022 | Feb 2022 |
| US 8,575,872 | Lapsed on the fee record Nov 2021 | Nov 2021 |
| US 9,018,868 | In force Jul 2030 | Jul 2030 |
| US 8,791,658 | Lapsed on the fee record Jul 2022 | Jul 2022 |
| US 9,194,179 | In force Jul 2030 | Jul 2030 |
| US 8,947,027 | In force Feb 2030 | Feb 2030 |
8 of 22 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 |
|---|---|---|---|
| Oct 19, 2011 Reel 27088, frame 794 | Mullet, Willis Jay; Hand, Richard Scott; Brunk, Darrin W. | Homerun Holdings Corporation | Assignment of Assignor's Interest |
| Nov 23, 2015 Reel 37151, frame 818 | Homerun Holdings Corporation | Qmotion Incorporated | Change of Name |
| Jan 28, 2016 Reel 37608, frame 688 | Qmotion Incorporated | The Watt Stopper, Inc. | 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.
What's changing
Note
The 293 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
89
later US patents cite this one
That is top 5% 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.