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US

Distributed Maximum Power Point Tracking System, Structure and Process

US 9,812,859 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Nov 7, 2025 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed Apr 19, 2013 as application 13/866,962 · Granted Nov 7, 2017
Base term, 20 years from filing, plus 1013 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Nov 7, 2025
2008 2028
Clock starts
Mar 26, 2008
No longer in force
Nov 7, 2025
Granted
Nov 7, 2017
Term would have run to
Mar 26, 2028
base term 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
1,013
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,772,716.
1 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.
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 Mar 26, 2028: its 20-year base term plus 1013 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Mar 26, 2008, when application 12/056,235, the earliest non-provisional in its chain, was filed (this one was filed Apr 19, 2013)Mar 26, 2028High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1013 days, USPTO patent term adjustment recordJan 3, 2031High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,772,716)capped to Mar 26, 2028High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 2 maintenance fees paidlapsed Nov 7, 2025High confidence
Computed term endThe steps above, in orderNov 7, 2025High confidence

This family

US 7,772,716In force
Mar 2028
Mar 2028
US 8,035,249In force
no later than Mar 2028
no later than Mar 2028
US 8,427,009In force
Mar 2028
Mar 2028
US 9,200,818Lapsed on the fee record
Dec 2023
Dec 2023
US 9,196,770Lapsed on the fee record
Nov 2023
Nov 2023
US 9,812,859this patent
Nov 2025
Nov 2025
US 10,250,184In force
Mar 2028
Mar 2028
US 10,116,257Lapsed 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.
RecordedAssignorAssigneeConveyance
Apr 19, 2013
Reel 30256, frame 73
Shaver, Argil E., II; Newdoll, Ronald M.Newdoll Enterprises LLCAssignment of Assignor's Interest
Sep 20, 2016
Reel 40092, frame 182
Newdoll Enterprises LLCAccurate Solar Power, LLCChange of Name
Oct 17, 2016
Reel 40381, frame 421
Newdoll Enterprises LLCAccurate Solar Power LLCChange of Name
Oct 17, 2016
Reel 40033, frame 454
Accurate Solar Power, LLCSolaredge Technologies Ltd.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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