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US

Wafer Level Surface Passivation of Stackable Integrated Circuit Chips

US 8,324,081 In force
OverviewFamilyAssignmentsSources & methods

Term ends Jun 19, 2028 · High confidence

Filed Mar 4, 2011 as application 13/041,192 · Granted Dec 4, 2012
Base term, 20 years from filing
Today
20 years from filing
2008 2028
Clock starts
Jun 19, 2008
Term ends
Jun 19, 2028
Granted
Dec 4, 2012
base term 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 7,923,349, to Jun 19, 2028. 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.
4
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 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 19, 2008, when application 12/142,589, the earliest non-provisional in its chain, was filed (this one was filed Mar 4, 2011)Jun 19, 2028High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,923,349)resolves to Jun 19, 2028, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJun 19, 2028High confidence

This family

Application 60/945,005Provisional application
no patent term
no patent term
Application PCT/US2008/067541PCT application
no patent term
no patent term
US 7,923,349In force
Nov 2028
Nov 2028
US 8,324,081this patent
Jun 2028
Jun 2028
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
Oct 24, 2012
Reel 29186, frame 755
Vertical Circuits, Inc.Vertical Circuits (Assignment for the Benefit of Creditors), LLCAssignment of Assignor's Interest
Jan 21, 2013
Reel 29664, frame 521
McElrea, Simon J.S.; Caskey, Terrence; McGrath, Scott; Melcher, De Ann Ellen; Co., Reynaldo; Andrews, Lawrence Douglas Jr.; Pan, Weiping; Villavicencio, Grant; Du, Yong; Crane, Scott Jay; Liu, ZongrongVertical Circuits, Inc.Assignment of Assignor's Interest
Jan 23, 2013
Reel 29683, frame 797
Vertical Circuits, Inc.Vertical Circuits Solutions, Inc.Assignment of Assignor's Interest
Jan 24, 2013
Reel 29686, frame 255
Vertical Circuits Solutions, Inc.Vertical Circuits, Inc.Change of Name
Jan 30, 2013
Reel 29736, frame 944
Vertical Circuits (Assignment for the Benefit of Creditors), LLCInvensas CorporationAssignment of Assignor's Interest
Apr 16, 2013
Reel 30229, frame 367
McElrea, Simon J.s.; Caskey, Terrence; McGrath, Scott; Melcher, Deann Eileen; Co., Reynaldo; Andrews, JR., Lawrence Douglas; Pan, Weiping; Villavicencio, Grant; Du, Yong; Crane, Scott Jay; Liu, ZongrongVertical Circuits, Inc.Correction to Reel 029664/FRAME 0521 to Correct the Name of Deann Eileen Melcher
Dec 2, 2016
Reel 40797, frame 1
Invensas Corporation; Tessera, Inc.; Tessera Advanced Technologies, Inc.; Ziptronix, Inc.; DigitalOptics Corporation; DigitalOptics Corporation Mems; DTS, LLC; DTS, Inc.; Phorus, Inc.; Ibiquity Digital CorporationRoyal Bank of Canada, as Collateral AgentSecurity Interest
Jun 1, 2020
Reel 53468, frame 1
Rovi Solutions Corporation; Rovi Technologies Corporation; Rovi Guides, Inc.; TiVo Solutions Inc.; Veveo, Inc.; Invensas Corporation; Invensas Bonding Technologies, Inc.; Tessera, Inc.; Tessera Advanced Technologies, Inc.; DTS, Inc.; Phorus, Inc.; Ibiquity Digital CorporationBank Of America, N.a.Security Interest
Jun 11, 2020
Reel 52920, frame 1
Royal Bank of CanadaTessera, Inc.; Invensas Bonding Technologies, Inc. (F/K/A Ziptronix, Inc.); FotoNation Corporation (F/K/A DigitalOptics Corporation and F/K/A DigitalOptics Corporation Mems); Invensas Corporation; Tessera Advanced Technologies, Inc.; DTS, Inc.; DTS LLC; Phorus, Inc.; Ibiquity Digital CorporationRelease of Security Interest
Jun 11, 2020
reel/frame not recorded
Royal Bank of CanadaTessera, Inc.Release of Security Interest
Jun 11, 2020
reel/frame not recorded
Royal Bank of CanadaInvensas Bonding Technologies, Inc. (F/K/A Ziptronix, Inc.)Release of Security Interest
Jun 11, 2020
reel/frame not recorded
Royal Bank of CanadaFotoNation Corporation (F/K/A DigitalOptics Corporation and F/K/A DigitalOptics Corporation Mems)Release of Security Interest
Jun 11, 2020
reel/frame not recorded
Royal Bank of CanadaInvensas CorporationRelease of Security Interest
Jun 11, 2020
reel/frame not recorded
Royal Bank of CanadaTessera Advanced Technologies, Inc.Release of Security Interest
Jun 11, 2020
reel/frame not recorded
Royal Bank of CanadaDTS, Inc.Release of Security Interest
Jun 11, 2020
reel/frame not recorded
Royal Bank of CanadaDTS LLCRelease of Security Interest
Jun 11, 2020
reel/frame not recorded
Royal Bank of CanadaPhorus, Inc.Release of Security Interest
Jun 11, 2020
reel/frame not recorded
Royal Bank of CanadaIbiquity Digital CorporationRelease of Security Interest
Nov 24, 2025
Reel 73508, frame 745
Invensas LLCAdeia Semiconductor Technologies LLCChange of Name
Nov 24, 2025
Reel 73941, frame 814
Invensas CorporationInvensas 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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