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Methods and Apparatus for Circulation Transmissions for Ofdm-Based Mimo Systems

US 7,593,472 in-force Microchip Technology Incorporated · Filed Oct 6, 2005 · Granted Sep 22, 2009

Also listed on Microchip Technology (BARBADOS) II Incorporated, which filed it. The recorded assignments below show how it moved.

Term ends Apr 17, 2028

Base term plus 924 days of PTA
Today
20y-from-earliest-nonprovisional
Expires Apr 2028
2005 2028
Clock starts
Oct 6, 2005
Granted
Sep 22, 2009
Term ends
Apr 17, 2028
base term patent term adjustment fee events Computed Sep 1, 2026 · countdowns run from that date · how we know
924
Days of PTA
3
Applications in this family

This patent's term runs 924 days past the statutory base term on prosecution delay. All three maintenance fees are paid, so nothing but the term itself will end it. Confidence: High. from the record

How this date was computed

Every step shows its rule, its 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, 20y-from-earliest-nonprovisionalClock starts Oct 6, 2005Oct 6, 2025High
Continuity chainEvery parent in the chain resolvedno changeHigh
Patent term adjustment+924 days, USPTO PTA recordApr 17, 2028High
Terminal disclaimer capNone on recordno cap appliedHigh
Patent term extensionNone on fileno changeHigh
Fee events3 of 3 maintenance fees paidin-forceHigh
Computed term endThe steps above, in orderApr 17, 2028High

The computation, verbatim

base=20y-from-earliest-nonprovisional: 2005-10-06+20y | =2025-10-06 | PTA+924d=2028-04-17 | PTE:none | TD:none | paid 4yr@2013-03-01,8yr@2017-03-22,12yr@2021-02-18 | status=in-force@2028-04-17

This family

US 7,593,472this patentApr 2028
US 7,773,680expired-feesAug 2022

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
Nov 2, 2005
reel/frame not recorded
Chen, Jeng-Hong; Kim, PansopWinbond Electronics CorporationAssignment of Assignor's Interest
May 30, 2006
reel/frame not recorded
Winbond Electronics Corp.Integrated System Solution Corp.Assignment of Assignor's Interest
Jun 24, 2010
reel/frame not recorded
Integrated System Solution CorpIssc Technologies Corp.Change of Name
Sep 6, 2015
reel/frame not recorded
Issc Technologies Corp.Microchip Technology (BARBADOS) II IncorporatedMerger
Sep 18, 2015
reel/frame not recorded
Microchip Technology (BARBADOS) II IncorporatedMicrochip Technology IncorporatedAssignment of Assignor's Interest
Feb 10, 2017
reel/frame not recorded
Microchip Technology IncorporatedJpmorgan Chase Bank, N.A., as Administrative AgentSecurity Interest
Jun 25, 2018
Reel 46426, frame 1
Microchip Technology Incorporated; Silicon Storage Technology, Inc.; Atmel Corporation; Microsemi Corporation; Microsemi Storage Solutions, Inc.Jpmorgan Chase Bank, N.A., as Administrative AgentSecurity Interest
Jun 25, 2018
reel/frame not recorded
Atmel Corporation; Microchip Technology Incorporated; Microsemi Corporation; Microsemi Storage Solutions, Inc.; Silicon Storage Technology, Inc.Jpmorgan Chase Bank, N.A., as Administrative AgentSecurity Interest
Sep 18, 2018
Reel 47103, frame 206
Microchip Technology Incorporated; Silicon Storage Technology, Inc.; Atmel Corporation; Microsemi Corporation; Microsemi Storage Solutions, Inc.Wells Fargo Bank, National Association, as Notes Collateral AgentSecurity Interest
Sep 18, 2018
reel/frame not recorded
Atmel Corporation; Microchip Technology Incorporated; Microsemi Corporation; Microsemi Storage Solutions, Inc.; Silicon Storage Technology, Inc.Wells Fargo Bank, National Association, as Notes Collateral AgentSecurity Interest
Apr 24, 2020
reel/frame not recorded
Atmel Corporation; Microchip Technology Inc.; Microsemi Corporation; Microsemi Storage Solutions, Inc.; Silicon Storage Technology, Inc.Jpmorgan Chase Bank, N.A., as Administrative AgentSecurity Interest
May 30, 2020
reel/frame not recorded
Jpmorgan Chase Bank, N.A, as Administrative AgentMicrochip Technology Inc.Release of Security Interest
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What's changing

Note
The 924 days of PTA are read from the USPTO record, not recalculated by us

Citations

3
later US patents cite this one
That is above the median of utility patents granted in 2009 in our data, the only group it is compared against. How we rank
Every date shows its work: base rule, PTA, PTE, disclaimer caps, fee overlay, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
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