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Pump Jack and Method

US 7,661,512 Term ended
OverviewAssignmentsSources & methods
Collateral for a security interest recorded Jun 16, 2025 (Ares Capital Corporation).

Term ended Oct 22, 2026 · High confidence

Held by Werner Co.
Filed May 5, 2005 as application 11/122,419 · Granted Feb 16, 2010
Base term plus 535 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Oct 22, 2026
2005 2026
Clock starts
May 5, 2005
Term ended
Oct 22, 2026
Granted
Feb 16, 2010
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
535
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.

This patent's term runs 535 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 May 5, 2005, when this application, 11/122,419, was filedMay 5, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+535 days, USPTO patent term adjustment recordOct 22, 2026High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderOct 22, 2026High confidence

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
May 25, 2005
Reel 16275, frame 421
Werner Co.Credit Suisse First Boston, Acting Through Its Cayman Islands BranchPatent Security Agreement
Jun 9, 2005
Reel 16112, frame 933
Werner Co.JPMorgan Chase Bank, N.A., as Administrative AgentSecurity Agreement
Jun 10, 2005
Reel 16325, frame 341
Feldmiller, Richard E., JR.; Beggs, Robert D.Werner Co.Assignment of Assignor's Interest
Jun 11, 2007
Reel 19410, frame 925
Werner Holding Co. (de), Inc.; Werner Holding Co. (Pa), Inc.; Werner Co.; Wip Technologies, Inc.Werner Co.Assignment of Assignor's Interest
Jun 12, 2007
Reel 19417, frame 18
Werner Co.Bank of America, N.A., as AgentSecurity Agreement
Jun 26, 2007
Reel 19479, frame 566
Werner Co.Black Diamond Commercial Finance, L.L.C.Patent Security Agreement
Jul 9, 2007
Reel 19533, frame 397
Black Diamond Commercial Finance L.L.C.Werner Co.Release of Security Interest in Patent Rights
Jul 11, 2007
Reel 19542, frame 898
Credit Suisse, Cayman Islands BranchWerner Co.Release of Security Interest in Patent Rights
Apr 29, 2011
Reel 26200, frame 348
Black Diamond Commercial Finance, L.L.C.Werner Co.Release of Security Interest in Patents
Apr 29, 2011
Reel 26200, frame 981
Werner Co.Bank of America, N.A., as Administrative AgentSecurity Agreement
May 2, 2011
Reel 26210, frame 419
Bank Of America, N.a.Werner Co.Release of Security Interest in Patents
Jul 24, 2017
Reel 43318, frame 824
Bank of America, N.A., as Administrative AgentWerner Co.Release of Security Interest in Intellectual Property Collateral
Jul 24, 2017
Reel 43318, frame 877
Werner Co.Bank of America, N.A., as Administrative AgentRelease of Security Interest in Intellectual Property Collateral
Jul 25, 2017
Reel 43327, frame 956
Knaack LLC; Werner Co.; Werner Technologies, Inc.JPMorgan Chase Bank, N.A., as Collateral Agent in Respect of the ABL Credit AgreementPatent Security Agreement (ABL)
Jul 25, 2017
Reel 43328, frame 1
Knaack LLC; Werner Co.; Werner Technologies, Inc.JPMorgan Chase Bank, N.A., as Collateral Agent in Respect of the Term Loan Credit AgreementPatent Security Agreement (TERM Loan)
Jun 12, 2023
Reel 63958, frame 740
Werner Co.Wilmington Trust, National Association, as Notes Collateral AgentSecurity Interest
Jun 12, 2023
Reel 63957, frame 231
JPMorgan Chase Bank, N.A., as Collateral AgentKnaack LLC; Werner Co.; Werner Technologies, Inc.Release of Security Interest in Patents at R/F 043328/0001
Jun 12, 2023
reel/frame not recorded
JPMorgan Chase Bank, N.A., as Collateral AgentKnaack LLCRelease of Security Interest in Patents at R/F 043328/0001
Jun 12, 2023
reel/frame not recorded
JPMorgan Chase Bank, N.A., as Collateral AgentWerner Co.Release of Security Interest in Patents at R/F 043328/0001
Jun 12, 2023
reel/frame not recorded
JPMorgan Chase Bank, N.A., as Collateral AgentWerner Technologies, Inc.Release of Security Interest in Patents at R/F 043328/0001
Jun 27, 2023
Reel 64126, frame 396
Werner Co.Wilmington Trust, National Association, as Notes Collateral AgentSecurity Interest
Jun 27, 2023
Reel 64205, frame 636
Werner Co.Willa Finco II SARL (Formerly Triton V Luxco 95 SARL)Security Interest
Jun 16, 2025
Reel 71636, frame 185
Werner Co.Ares Capital Corporation, As Collateral AgentSecurity Interest
Jun 16, 2025
Reel 71649, frame 699
Wilmington Trust, National Association, as Notes Collateral AgentWerner Co.Termination and Release of Security Interest in Patents Recorded at Reel 063958, Frame 0740
Jun 16, 2025
Reel 71649, frame 774
Wilmington Trust, National Association, as Notes Collateral AgentWerner Co.Termination and Release of Security Interest in Patents Recorded at Reel 064126, Frame 0396
Jun 16, 2025
Reel 71649, frame 887
Willa Finco II SARLWerner Co.Termination and Release of Security Interest in Patents Recorded at Reel 064205, Frame 0636

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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