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US 8,683,601 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Mar 25, 2026 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

Held by Google LLC
Filed Apr 2, 2007 as application 11/695,507 · Granted Mar 25, 2014
Base term, 20 years from filing, plus 1603 days of patent term adjustment (USPTO delay)
Today
Lapsed Mar 25, 2026
2007 2031
Clock starts
Apr 2, 2007
No longer in force
Mar 25, 2026
Granted
Mar 25, 2014
Term would have run to
Aug 22, 2031
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
1,603
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.
3
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 Aug 22, 2031: its 20-year base term plus 1603 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Apr 2, 2007, when this application, 11/695,507, was filedApr 2, 2027High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1603 days, USPTO patent term adjustment recordAug 22, 2031High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Mar 25, 2026High confidence
Computed term endThe steps above, in orderMar 25, 2026High confidence

This family

US 8,683,601this patent
Mar 2026
Mar 2026
Application PCT/US2007/065925PCT application
no patent term
no patent term
US 9,392,344In force
Oct 2027
Oct 2027
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 20, 2007
Reel 19188, frame 321
Rassool, Reza P.Widevine Technologies, Inc.Assignment of Assignor's Interest
Jun 22, 2011
Reel 26535, frame 65
Widevine Technologies, Inc.Google Inc.Assignment of Assignor's Interest
Oct 2, 2017
Reel 44101, frame 299
Google Inc.Google LLCChange 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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