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US

Clock, Frequency Reference, and Other Reference Signal Generator with a Controlled Quality Factor

US 8,093,958 In force, term unresolved
OverviewFamilyAssignmentsSources & methods

Also listed on Mobius Microsystems, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Collateral for a security interest recorded Sep 2, 2026 (Wells Fargo Bank, National Association).

Term ends no later than Jul 25, 2028 · Low confidence

In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.

Filed Jan 12, 2008 as application 12/013,440 · Granted Jan 10, 2012
Base term plus 233 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2007 2028
Clock starts
Dec 5, 2007
Ends no later than
Jul 25, 2028
Granted
Jan 10, 2012
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
233
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
33
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 233 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees are recorded paid; no more fees are due. Confidence: Low. 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 5, 2007, when application 11/950,707, the earliest non-provisional in its chain, was filed (this one was filed Jan 12, 2008); a parent in its chain could not be resolved (the next row)Dec 5, 2027High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustment+233 days, USPTO patent term adjustment recordJul 25, 2028High confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderno later than Jul 25, 2028Low confidence

This family

US 7,227,423Term ended
Mar 2025
Mar 2025
US 7,227,424Term ended
Mar 2025
Mar 2025
US 7,456,699Term ended
no later than Mar 2025
no later than Mar 2025
US 7,248,124Term ended
Jul 2025
Jul 2025
Application PCT/US2005/034016PCT application
no patent term
no patent term
Application PCT/US2005/033979PCT application
no patent term
no patent term
Application PCT/US2005/034020PCT application
no patent term
no patent term
US 7,307,486Term ended
Jun 2025
Jun 2025
8 of 33 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
Dec 12, 2009
Reel 23644, frame 983
Pernia, Scott Michael; McCorquodale, Michael Shannon; Nguyen, Nam Duc; O'day, Justin; Beaudouin, Ralph; Kubba, SundusMobius Microsystems, Inc.Assignment of Assignor's Interest
Mar 2, 2010
Reel 24016, frame 414
Mobius Microsystems, Inc.Integrated Device Technology, Inc.Nunc Pro Tunc Assignment
Apr 5, 2017
Reel 42166, frame 431
Integrated Device Technology, Inc.; Gigpeak, Inc.; Magnum Semiconductor, Inc.; Endwave Corporation; Chipx, IncorporatedJPMorgan Chase Bank, N.A., as Collateral AgentSecurity Agreement
Mar 29, 2019
Reel 48746, frame 1
Jpmorgan Chase Bank, N.a.Integrated Device Technology, Inc.; Gigpeak, Inc.; Chipx, Incorporated; Endwave Corporation; Magnum Semiconductor, Inc.Release of Security Interest
Mar 29, 2019
reel/frame not recorded
Jpmorgan Chase Bank, N.a.Integrated Device Technology, Inc.Release of Security Interest
Mar 29, 2019
reel/frame not recorded
Jpmorgan Chase Bank, N.a.Gigpeak, Inc.Release of Security Interest
Mar 29, 2019
reel/frame not recorded
Jpmorgan Chase Bank, N.a.Chipx, IncorporatedRelease of Security Interest
Mar 29, 2019
reel/frame not recorded
Jpmorgan Chase Bank, N.a.Endwave CorporationRelease of Security Interest
Mar 29, 2019
reel/frame not recorded
Jpmorgan Chase Bank, N.a.Magnum Semiconductor, Inc.Release of Security Interest
Jan 26, 2026
Reel 74479, frame 354
Integrated Device Technology, Inc. (Delaware)Integrated Device Technology, Inc. (California)Entity Conversion
Jan 27, 2026
Reel 74577, frame 935
Renesas Electronics America Inc.; Integrated Device Technology, Inc.Renesas Electronics America Inc.Merger and Change of Name
Aug 27, 2026
Reel 75811, frame 217
Renesas Electronics America Inc.Sitime CorporationAssignment of Assignor's Interest
Sep 2, 2026
Reel 76353, frame 112
Sitime CorporationWells Fargo Bank, National Association, as Collateral AgentSecurity Interest

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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