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Method and Apparatus for Providing Mutual Authentication Between a Sending Unit and a Recipient

US 8,230,486 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Sep 1, 2025 · High confidence

Filed Oct 18, 2004 as application 10/967,669 · Granted Jul 24, 2012
Base term plus 611 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Sep 1, 2025
2003 2026
Clock starts
Dec 30, 2003
Term ended
Sep 1, 2025
Granted
Jul 24, 2012
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
611
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.
14
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 611 days past its 20-year base term on 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 Dec 30, 2003, when application 10/748,523, the earliest non-provisional in its chain, was filed (this one was filed Oct 18, 2004)Dec 30, 2023High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+611 days, USPTO patent term adjustment recordSep 1, 2025High 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 orderSep 1, 2025High confidence

This family

US 7,765,580Term ended
Jul 2025
Jul 2025
US 8,612,757Lapsed on the fee record
Dec 2017
Dec 2017
US 8,060,915In force
Feb 2027
Feb 2027
US 8,230,486this patent
Sep 2025
Sep 2025
Application 11/063,518Abandoned
not computed
not computed
US 9,281,945In force
Aug 2029
Aug 2029
US 9,191,215Term ended
Sep 2025
Sep 2025
US 8,966,579In force
Feb 2027
Feb 2027
8 of 14 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
Feb 28, 2005
Reel 16338, frame 582
Voice, ChrisEntrust LimitedAssignment of Assignor's Interest
Jun 5, 2009
Reel 22790, frame 273
Voice, ChrisEntrust, Inc.Corrective Assignment to Correct the Assignee Inadvertently Listed Incorrectly on the Original Assignment Previously Recorded on Reel 016338 Frame 0582. Assignor(S) Hereby Confirms the Assignee Should Have Been Listed as Entrust, Inc. Pursuant to the Attached Declaration Signed by the Current Owner of the Patent.
Jul 30, 2009
Reel 23015, frame 782
Hac Holdings, Inc.; Hac Acquisition Corporation; Entrust, Inc.; Entrust Limited; Entrust International LLC; Cygnacom Solutions Inc.; Orion Security Solutions, Inc.; Encommerce, Inc.; Business Signatures CorporationWells Fargo Foothill, LLCPatent Security Agreement
Nov 1, 2012
Reel 29229, frame 37
Entrust Holdings, Inc.; Entrust, Inc.; Entrust Limited; Entrust International LLC; Cygnacom Solutions Inc.; Orion Security Solutions, Inc.; Encommerce, Inc.; Business Signatures CorporationWells Fargo Capital Finance, LLCAmendment Number Two to Patent Security Agreement
Jan 17, 2014
Reel 32086, frame 638
Golub Capital LLCEntrust Holdings, Inc.; Entrust, Inc.; Orion Security Solutions, Inc.Release of Security Interest
Jan 17, 2014
reel/frame not recorded
Golub Capital LLCEntrust Holdings, Inc.Release of Security Interest
Jan 17, 2014
reel/frame not recorded
Golub Capital LLCEntrust, Inc.Release of Security Interest
Jan 17, 2014
reel/frame not recorded
Golub Capital LLCOrion Security Solutions, Inc.Release of Security Interest
Jan 20, 2014
Reel 32089, frame 151
Wells Fargo Capital Finance, LLCEntrust Holdings, Inc.; Entrust, Inc.; Orion Security Solutions, Inc.Release of Security Interest
Jan 20, 2014
reel/frame not recorded
Wells Fargo Capital Finance, LLCEntrust Holdings, Inc.Release of Security Interest
Jan 20, 2014
reel/frame not recorded
Wells Fargo Capital Finance, LLCEntrust, Inc.Release of Security Interest
Jan 20, 2014
reel/frame not recorded
Wells Fargo Capital Finance, LLCOrion Security Solutions, Inc.Release of Security Interest
Apr 16, 2018
Reel 45945, frame 602
Entrust, Inc.BMO Harris Bank N.A., as AgentSecurity Agreement
Mar 18, 2024
Reel 66806, frame 175
Entrust, Inc.Entrust CorporationMerger

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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