The Patent Finder
Sign in
US

Calibration of Voltage Controlled Oscillators

US 7,728,679 in-force Microchip Technology Incorporated · Filed Jul 10, 2008 · Granted Jun 1, 2010

Term ends Sep 17, 2027

Base term plus 132 days of PTA
Today
20y-from-earliest-nonprovisional
Expires in 12 months
2007 2027
Clock starts
May 8, 2007
Granted
Jun 1, 2010
Term ends
Sep 17, 2027
base term patent term adjustment fee events Computed Sep 1, 2026 · countdowns run from that date · how we know
132
Days of PTA
3
Applications in this family

This patent's term runs 132 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 May 8, 2007May 8, 2027High
Continuity chainEvery parent in the chain resolvedno changeHigh
Patent term adjustment+132 days, USPTO PTA recordSep 17, 2027High
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 orderSep 17, 2027High

The computation, verbatim

base=20y-from-earliest-nonprovisional: 2007-05-08+20y | =2027-05-08 | PTA+132d=2027-09-17 | PTE:none | TD:none | paid 4yr@2013-12-02,8yr@2017-11-20,12yr@2021-11-18 | status=in-force@2027-09-17

This family

US 7,415,369in-forceMay 2027
US 7,603,244in-forceMay 2027
US 7,728,679this patentSep 2027

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
Apr 15, 2010
reel/frame not recorded
Zerog Wireless, Inc.Azi Acquisition CorporationMerger
Apr 15, 2010
reel/frame not recorded
Azi Acquisition CorporationMicrochip Technology, Inc.Assignment of Assignor's Interest
May 24, 2010
reel/frame not recorded
Zerog Wireless, Inc.AZ1 Acquisition CorporationMerger
May 24, 2010
reel/frame not recorded
AZ1 Acquisition CorporationMicrochip 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
May 30, 2020
reel/frame not recorded
Jpmorgan Chase Bank, N.A, as Administrative AgentSilicon Storage Technology, Inc.Release of Security Interest
Free plan: 3 watched companies. Pro: unlimited.
alerts on grants, lapses, transfers
Is this your company? Verify this record

What's changing

Note
The 132 days of PTA are read from the USPTO record, not recalculated by us

Citations

2
later US patents cite this one
That is below the median of utility patents granted in 2010 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.
OverviewFamilyAssignmentsSources & methods
CompaniesExpirationsWatchlistMethodology TermsPrivacyCookiesDMCACorrectionssupport@thepatentfinder.com Part of 137 Finder · © 2026 137 Finder LLC · Sources cited