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US

Telecommunication System with Packet-Switched-Multimedia-Session-To-Circuit-Switched-Call Transferral

US 7,751,415 In force
OverviewFamilyAssignmentsSources & methods

Term ends Nov 19, 2026 · High confidence

Filed Jun 2, 2003 as application 10/449,666 · Granted Jul 6, 2010
Base term plus 1266 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2003 2026
Clock starts
Jun 2, 2003
Term ends
Nov 19, 2026
Granted
Jul 6, 2010
base term patent term adjustment 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
1,266
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
2
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 1266 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Jun 2, 2003, when this application, 10/449,666, was filedJun 2, 2023High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1266 days, USPTO patent term adjustment recordNov 19, 2026High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderNov 19, 2026High confidence

This family

US 7,751,415this patent
Nov 2026
Nov 2026
US 10,841,979Term ended
Jun 2023
Jun 2023
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
Jun 2, 2003
Reel 14143, frame 460
Bos, Lieve Maria Marcella Rosemarijn; Thiebaut, Laurent Jean Andre; Wencel, Piotr JanAlcatelAssignment of Assignor's Interest
Jan 30, 2013
Reel 29821, frame 1
Alcatel LucentCredit Suisse AGSecurity Agreement
Dec 5, 2013
Reel 31766, frame 4
AlcatelAlcatel LucentChange of Name
Sep 30, 2014
Reel 33868, frame 1
Credit Suisse AGAlcatel LucentRelease of Security Interest
Oct 19, 2018
Reel 47271, frame 246
Alcatel LucentNokia Technologies OyAssignment 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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