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Method to Implement an L4-L7 Switch Using Split Connections and an Offloading Nic

US 8,139,482 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Aug 31, 2025 · Low confidence

Held by Speednic LLC
Filed Sep 25, 2009 as application 12/567,581 · Granted Mar 20, 2012
Base term, 20 years from filing
Today
20 years from filing
Term ended Aug 31, 2025
2005 2026
Clock starts
Aug 31, 2005
Term ended
Aug 31, 2025
Granted
Mar 20, 2012
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,616,563, to Aug 31, 2025. The term already ends on or before that date, so the cap shortened nothing.
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.
11
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees were paid, so no fee lapse ended it. Confidence: Low. 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 Aug 31, 2005, when application 11/217,661, the earliest non-provisional in its chain, was filed (this one was filed Sep 25, 2009); a parent in its chain could not be resolved (the next row)Aug 31, 2025High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,616,563)resolves to Aug 31, 2025, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Further caveats on recordThe record names parents not resolved: 11217661, 11217661Low confidence overallLow confidence
Computed term endThe steps above, in orderAug 31, 2025Low confidence

This family

US 7,724,658In force
Apr 2028
Apr 2028
US 7,715,436In force
Sep 2028
Sep 2028
US 7,660,264In force
Nov 2027
Nov 2027
US 7,660,306In force
Jun 2028
Jun 2028
US 7,616,563In force
Nov 2027
Nov 2027
US 8,139,482this patent
Aug 2025
Aug 2025
US 8,213,427Term ended
Aug 2026
Aug 2026
US 7,924,840Term ended
Jan 2026
Jan 2026
8 of 11 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 9, 2013
Reel 30389, frame 982
Chelsio Communications, Inc.East West BankSecurity Agreement
Oct 21, 2014
Reel 33989, frame 930
East West BankChelsio Communications, Inc.Release of Security Interest
Oct 21, 2014
Reel 33990, frame 451
Chelsio Communications, Inc.Silicon Valley BankSecurity Interest
Jul 15, 2016
Reel 39360, frame 596
East West BankChelsio Communications, Inc.Release of Security Interest
Jul 29, 2016
Reel 39296, frame 550
Chelsio Communications, Inc.Novirian CapitalSecurity Interest
Apr 25, 2017
Reel 42142, frame 232
Novirian CapitalChelsio Communications, Inc.Release of Security Interest
Aug 14, 2019
Reel 50050, frame 396
Chelsio Communications, Inc.Western Alliance Bank, An Arizona CorporationSecurity Interest
Aug 15, 2019
Reel 50112, frame 234
Chelsio Communications, Inc.Western Alliance Bank, An Arizona CorporationCorrective Assignment to Correct the the First Page of the Intellectual Property Security Agreement Has an Incorrect Date That Needs to Be Corrected Previously Recorded on Reel 050050 Frame 0396. Assignor(S) Hereby Confirms the Security Interest.
Dec 18, 2025
Reel 73264, frame 525
Western Alliance Bank, An Arizona CorporationChelsio Communications, Inc.Release of Security Interest
Dec 26, 2025
Reel 74070, frame 784
CSNK Working Capital Finance Corp.Chelsio Communications, Inc.Release of Security Interest
Feb 13, 2026
Reel 74633, frame 824
Chelsio Communications, Inc.Speednic LLCAssignment of Assignor's Interest
May 5, 2026
Reel 75561, frame 1
Chelsio Communications, Inc.Speednic 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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