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Mobile Instant Messaging Conferencing Method and System

US 7,940,704 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Apr 5, 2024 · High confidence

Filed Jan 21, 2010 as application 12/691,594 · Granted May 10, 2011
Base term, 20 years from filing
Today
20 years from filing
Term ended Apr 5, 2024
2004 2026
Clock starts
Apr 5, 2004
Term ended
Apr 5, 2024
Granted
May 10, 2011
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
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 is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 5, 2004, when application 10/817,994, the earliest non-provisional in its chain, was filed (this one was filed Jan 21, 2010)Apr 5, 2024High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderApr 5, 2024High confidence

This family

US 7,961,663Term ended
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 7,940,704this patent
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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