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Multi-Root Sharing of Single-Root Input/Output Virtualization

US 8,521,941 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Aug 27, 2021 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed Dec 28, 2010 as application 12/979,904 · Granted Aug 27, 2013
Base term, 20 years from filing, plus 336 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 27, 2021
2010 2031
Clock starts
Dec 28, 2010
No longer in force
Aug 27, 2021
Granted
Aug 27, 2013
Term would have run to
Nov 29, 2031
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
336
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
3
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Nov 29, 2031: its 20-year base term plus 336 days of term adjustment for prosecution delay. 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 28, 2010, when this application, 12/979,904, was filedDec 28, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+336 days, USPTO patent term adjustment recordNov 29, 2031High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed Aug 27, 2021High confidence
Computed term endThe steps above, in orderAug 27, 2021High confidence

This family

US 8,521,941this patent
Aug 2021
Aug 2021
US 8,645,605In force
Sep 2031
Sep 2031
US 9,141,571In force
Apr 2032
Apr 2032
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
Dec 28, 2010
Reel 25544, frame 934
Regula, JackPLX Technology, Inc.Assignment of Assignor's Interest
Oct 28, 2014
Reel 34069, frame 494
PLX Technology, Inc.Deutsche Bank AG New York Branch, as Collateral AgentPatent Security Agreement
May 7, 2015
Reel 35615, frame 767
PLX Technology, Inc.Avago Technologies General IP (Singapore) Pte. Ltd.Assignment of Assignor's Interest
Feb 2, 2016
Reel 37682, frame 802
Deutsche Bank AG New York Branch, as Collateral AgentPLX Technology, Inc.Termination and Release of Security Interest in Patent Rights (Releases RF 034069-0494)
Feb 11, 2016
Reel 37808, frame 1
Avago Technologies General IP (Singapore) Pte. Ltd.Bank of America, N.A., as Collateral AgentPatent Security Agreement
Feb 3, 2017
Reel 41710, frame 1
Bank of America, N.A., as Collateral AgentAvago Technologies General IP (Singapore) Pte. Ltd.Termination and Release of Security Interest in Patents
Oct 4, 2018
Reel 47230, frame 910
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedMerger
Oct 29, 2018
Reel 47351, frame 384
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedCorrective Assignment to Correct the Effective Date of the Merger Previously Recorded at Reel: 047230 Frame: 0910. Assignor(S) Hereby Confirms the Merger.
Mar 8, 2019
Reel 49248, frame 558
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedCorrective Assignment to Correct the Error in Recording the Merger in the Incorrect US Patent No. 8,876,094 Previously Recorded on Reel 047351 Frame 0384. Assignor(S) Hereby Confirms the Merger.

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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