Lapsed Nov 24, 2023 on the fee record · Medium confidence
20-year base term ends Mar 26, 2028
Why Medium: A parent in the chain could not be resolved.
Second maintenance fee unpaid; grace period ended.
Held by Accurate Solar Power, LLC
Filed Sep 13, 2012 as application 13/615,014 · Granted Nov 24, 2015
Base term, 20 years from filing, plus 463 days of patent term adjustment (USPTO delay)
Today
Lapsed Nov 24, 2023
2008
2029
Clock starts
Mar 26, 2008
Mar 26, 2008
No longer in force
Nov 24, 2023
Nov 24, 2023
Granted
Nov 24, 2015
Nov 24, 2015
Term would have run to
Jul 2, 2029
Jul 2, 2029
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
463
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.
19
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 Jul 2, 2029: its 20-year base term plus 463 days of term 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 Mar 26, 2008, when application 12/056,235, the earliest non-provisional in its chain, was filed (this one was filed Sep 13, 2012); a parent in its chain could not be resolved (the next row) | Mar 26, 2028 | 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 | +463 days, USPTO patent term adjustment record | Jul 2, 2029 | 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 Nov 24, 2023 | High confidence |
| Computed term end | The steps above, in order | Nov 24, 2023 | Medium confidence |
This family
| US 7,772,716 | In force Mar 2028 | Mar 2028 |
| US 8,035,249 | In force no later than Mar 2028 | no later than Mar 2028 |
| US 8,427,009 | In force Mar 2028 | Mar 2028 |
| US 9,200,818 | Lapsed on the fee record Dec 2023 | Dec 2023 |
| US 9,196,770 | this patent Nov 2023 | Nov 2023 |
| US 9,812,859 | Lapsed on the fee record Nov 2025 | Nov 2025 |
| US 10,250,184 | In force Mar 2028 | Mar 2028 |
| US 10,116,257 | Lapsed on the fee record Oct 2022 | Oct 2022 |
8 of 19 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 16, 2012 Reel 29137, frame 87 | Newdoll, Ronald M.; Shaver, Argil E., II | Newdoll Enterprises LLC | Assignment of Assignor's Interest |
| Sep 20, 2016 Reel 40092, frame 182 | Newdoll Enterprises LLC | Accurate Solar Power, LLC | Change of Name |
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 463 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
406
later US patents cite this one
That is top 1% of utility patents granted in 2015 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.