The Patent Finder
US

Pulley with Torque-Sensitive Clutching

US 7,931,552 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Apr 26, 2023 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

Filed Apr 30, 2008 as application 12/112,393 · Granted Apr 26, 2011
Base term, 20 years from filing, plus 428 days of patent term adjustment (USPTO delay)
Today
Lapsed Apr 26, 2023
2008 2029
Clock starts
Apr 30, 2008
No longer in force
Apr 26, 2023
Granted
Apr 26, 2011
Term would have run to
Jul 2, 2029
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
428
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
6
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 Jul 2, 2029: its 20-year base term plus 428 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 Apr 30, 2008, when this application, 12/112,393, was filedApr 30, 2028High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+428 days, USPTO patent term adjustment recordJul 2, 2029High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Apr 26, 2023High confidence
Computed term endThe steps above, in orderApr 26, 2023High confidence

This family

US 7,931,552this patent
Apr 2023
Apr 2023
Application PCT/US2009/041573PCT application
no patent term
no patent term
US 8,529,387In force
May 2030
May 2030
Application PCT/US2011/023541PCT application
no patent term
no patent term
US 8,784,244Lapsed on the fee record
Jul 2026
Jul 2026
Application PCT/US2012/029320PCT application
no patent term
no patent term
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
Apr 30, 2008
Reel 20895, frame 693
Pendergrass, Jeff; Lannutti, Anthony E.Dayco Products, LLCAssignment of Assignor's Interest
Nov 20, 2009
Reel 23546, frame 767
Mark IV Ivhs, Inc.; Luminator Holding L.P.; NRD, LLC; Dayco Products, LLCJPMorgan Chase Bank, N.A., as U.S. Collateral Agent and Administrative AgentGrant of Security Interest in Patent Rights - Abl Loan
Nov 20, 2009
Reel 23546, frame 802
Mark IV Ivhs, Inc.; Luminator Holding L.P.; NRD, LLC; Dayco Products, LLCJPMorgan Chase Bank, N.A., as Syndication Agent, U.S. Collateral Agent and Administrative AgentGrant of Security Interest in Patent Rights - Exit Term Loan
Nov 20, 2009
Reel 23546, frame 817
Mark IV Ivhs, Inc.; Luminator Holding L.P.; NRD, LLC; Dayco Products, LLCJPMorgan Chase Bank, N.A., as U.S. Collateral Agent and Administrative AgentGrant of Security Interest in Patent Rights - Restructured Debt
Dec 14, 2010
Reel 25491, frame 429
JPMorgan Chase Bank, N.A., as US Collateral Agent and Administrative AgentNRD, LLC; Dayco Products, LLCTermination and Release of Security Interest in Patents-Exit Term and Restructured Debt Loan
Dec 14, 2010
reel/frame not recorded
JPMorgan Chase Bank, N.A., as US Collateral Agent and Administrative AgentNRD, LLCTermination and Release of Security Interest in Patents-Exit Term and Restructured Debt Loan
Dec 14, 2010
reel/frame not recorded
JPMorgan Chase Bank, N.A., as US Collateral Agent and Administrative AgentDayco Products, LLCTermination and Release of Security Interest in Patents-Exit Term and Restructured Debt Loan
Dec 15, 2010
Reel 25496, frame 96
NRD, LLC; Dayco Products, LLCDeutsche Bank AG, London BranchSecurity Agreement
Nov 30, 2012
Reel 29378, frame 65
Dayco Products, LLCDayco IP Holdings, LLCAssignment of Assignor's Interest
Dec 13, 2013
Reel 31815, frame 70
Deutsche Bank AG, London BranchDayco IP Holdings, LLCRelease of Security Interest at Reel/Frame 025496/0096
Dec 13, 2013
Reel 31815, frame 89
Jpmorgan Chase Bank, N.a.Dayco IP Holdings, LLCRelease of Security Interest at Reel/Frame 023546/0767
Dec 13, 2013
Reel 31815, frame 858
Jpmorgan Chase Bank, N.a.Dayco IP Holdings, LLCRelease of Security Interest
Dec 16, 2013
Reel 31817, frame 737
Dayco IP Holdings, LLCBank of America, N.A., as Collateral AgentSecurity Agreement
Dec 17, 2013
Reel 31832, frame 554
Dayco IP Holdings, LLCBank of America, N.A., as AgentSecurity Agreement
May 22, 2017
Reel 42523, frame 770
Bank of America, N.A, as Collateral AgentDayco IP Holdings, LLC; Dayco Products, LLCPatent Release (REEL:03817/FRAME:0737)
May 22, 2017
reel/frame not recorded
Bank of America, N.A, as Collateral AgentDayco IP Holdings, LLCPatent Release (REEL:03817/FRAME:0737)
May 22, 2017
reel/frame not recorded
Bank of America, N.A, as Collateral AgentDayco Products, LLCPatent Release (REEL:03817/FRAME:0737)
May 23, 2017
Reel 42554, frame 222
Dayco IP Holdings, LLCBank of America, N.A., as Collateral AgentSecurity Agreement
Sep 30, 2022
Reel 61575, frame 692
Dayco IP Holdings, LLC; Dayco, LLCWells Fargo Bank, National AssociationSecurity Agreement
Oct 6, 2022
Reel 61620, frame 98
Dayco Products, LLC; Dayco, LLC; Dayco IP Holdings, LLCBlue Torch Finance LLCSecurity Interest
Oct 7, 2022
Reel 61623, frame 587
Bank Of America, N.a.Dayco IP Holdings, LLCRelease (REEL 042554 / Frame 0222)
Sep 26, 2024
Reel 69066, frame 171
Blue Torch Finance LLC, as Collateral AgentDayco Products, LLC; Dayco IP Holdings, LLCRelease of Security Interest
Sep 26, 2024
Reel 69066, frame 236
Wells Fargo Bank, National Association, as AgentDayco IP Holdings, LLC; Dayco, LLCRelease of Security Interest
Sep 26, 2024
reel/frame not recorded
Blue Torch Finance LLC, as Collateral AgentDayco Products, LLCRelease of Security Interest
Sep 26, 2024
reel/frame not recorded
Blue Torch Finance LLC, as Collateral AgentDayco IP Holdings, LLCRelease of Security Interest
Sep 26, 2024
reel/frame not recorded
Wells Fargo Bank, National Association, as AgentDayco IP Holdings, LLCRelease of Security Interest
Sep 26, 2024
reel/frame not recorded
Wells Fargo Bank, National Association, as AgentDayco, LLCRelease of Security 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited