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Peer-To-Peer Mobile Instant Messaging Method and Device

US 7,961,663 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Feb 5, 2026 · Medium confidence

Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 7,764,637, US 7,773,550), so the cap could be lower.

Filed Apr 5, 2004 as application 10/817,994 · Granted Jun 14, 2011
Base term plus 1030 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
Term ended Feb 5, 2026
2004 2026
Clock starts
Apr 5, 2004
Term ended
Feb 5, 2026
Granted
Jun 14, 2011
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
1,030
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 7,764,637, US 7,773,550.
3 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.
16
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term runs 1030 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. All three maintenance fees were paid, so no fee lapse ended it. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Apr 5, 2004, when this application, 10/817,994, was filedApr 5, 2024High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1030 days, USPTO patent term adjustment recordJan 30, 2027High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,764,637, US 7,773,550)capped to Feb 5, 2026Medium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderFeb 5, 2026Medium confidence

This family

US 7,961,663this patent
Feb 2026
Feb 2026
US 7,764,637In force
no later than Dec 2026
no later than Dec 2026
US 7,773,550Term ended
no later than Feb 2026
no later than Feb 2026
US 7,672,255Term ended
Nov 2026
Nov 2026
US 7,502,335Term ended
Mar 2025
Mar 2025
US 7,817,606In force
Dec 2027
Dec 2027
US 7,940,704Term ended
Apr 2024
Apr 2024
US 7,969,925Term ended
Apr 2024
Apr 2024
8 of 16 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 22, 2012
Reel 28247, frame 668
Lin, DanielPendragon Wireless LLCAssignment of Assignor's Interest
Feb 14, 2018
Reel 45338, frame 601
Pendragon Wireless LLCUniloc Luxembourg S.A.Assignment of Assignor's Interest
Jul 12, 2018
Reel 46532, frame 88
Uniloc Luxembourg S.A.Uniloc 2017 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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