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Virtual Core Management

US 8,543,843 In force
OverviewFamilyAssignmentsSources & methods

Term ends Dec 13, 2027 · High confidence

Filed Oct 31, 2007 as application 11/933,349 · Granted Sep 24, 2013
Base term plus 1668 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
2006 2027
Clock starts
Mar 29, 2006
Term ends
Dec 13, 2027
Granted
Sep 24, 2013
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
1,668
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 8,219,788.
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.
9
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 1668 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 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 Mar 29, 2006, when application 11/277,761, the earliest non-provisional in its chain, was filed (this one was filed Oct 31, 2007)Mar 29, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1668 days, USPTO patent term adjustment recordOct 22, 2030High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,219,788)capped to Dec 13, 2027High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderDec 13, 2027High confidence

This family

US 7,389,403Term ended
Mar 2026
Mar 2026
Application 11/279,882Abandoned
not computed
not computed
Application 11/279,883Abandoned
not computed
not computed
US 7,802,073In force
Mar 2027
Mar 2027
US 8,219,788In force
Dec 2027
Dec 2027
US 7,797,512In force
Feb 2027
Feb 2027
US 8,225,315In force
Oct 2029
Oct 2029
US 8,543,843this patent
Dec 2027
Dec 2027
8 of 9 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
Jan 22, 2008
Reel 20397, frame 27
Cheng, Yu Qing; Favor, John Gregory; Glaskowsky, Peter N.; Puchol, Carlos; Song, Seungyoon PeterMontalvo Systems, Inc.Assignment of Assignor's Interest
May 16, 2008
Reel 20957, frame 434
Montalvo Systems, Inc.Sun Microsystems, Inc.Assignment of Assignor's Interest
Aug 23, 2011
Reel 26794, frame 962
Montalvo Systems, Inc.Sun Microsystems, Inc.; Sun Microsystems Technology Ltd.Corrective Assignment to Correct the Assignee Previously Recorded on Reel 020957 Frame 0434. Assignor(S) Hereby Confirms the Correct Assignees Are Sun Microsystems, Inc. and Sun Microsystems Technology LTD.
Aug 23, 2011
reel/frame not recorded
Montalvo Systems, Inc.Sun Microsystems, Inc.Corrective Assignment to Correct the Assignee Previously Recorded on Reel 020957 Frame 0434. Assignor(S) Hereby Confirms the Correct Assignees Are Sun Microsystems, Inc. and Sun Microsystems Technology LTD.
Aug 23, 2011
reel/frame not recorded
Montalvo Systems, Inc.Sun Microsystems Technology Ltd.Corrective Assignment to Correct the Assignee Previously Recorded on Reel 020957 Frame 0434. Assignor(S) Hereby Confirms the Correct Assignees Are Sun Microsystems, Inc. and Sun Microsystems Technology LTD.

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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