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US 8,804,931 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Aug 12, 2026 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

Filed May 29, 2012 as application 13/482,587 · Granted Aug 12, 2014
Base term, 20 years from filing, plus 35 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 12, 2026
2012 2032
Clock starts
May 29, 2012
No longer in force
Aug 12, 2026
Granted
Aug 12, 2014
Term would have run to
Jul 3, 2032
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
35
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.
18
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 3, 2032: its 20-year base term plus 35 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 May 29, 2012, when this application, 13/482,587, was filedMay 29, 2032High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+35 days, USPTO patent term adjustment recordJul 3, 2032High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Aug 12, 2026High confidence
Computed term endThe steps above, in orderAug 12, 2026High confidence

This family

US 8,804,931this patent
Aug 2026
Aug 2026
US 8,797,902Lapsed on the fee record
Aug 2026
Aug 2026
Application 13/482,690Abandoned
not computed
not computed
US 8,929,238In force
Jun 2032
Jun 2032
US 8,923,204Lapsed on the fee record
Dec 2022
Dec 2022
US 8,850,064In force
Nov 2032
Nov 2032
US 9,112,800Lapsed on the fee record
Aug 2019
Aug 2019
US 9,172,610Lapsed on the fee record
Oct 2019
Oct 2019
8 of 18 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
May 30, 2012
Reel 28284, frame 699
Petrack, Scott; Malegaonkar, RahulMicrosoft CorporationAssignment of Assignor's Interest
Dec 9, 2014
Reel 34544, frame 541
Microsoft CorporationMicrosoft Technology Licensing, LLCAssignment 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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