US3587651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multistage power valve assembly
Assignee: Holley Performance Products Inc
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Filing: 1968-12-23
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Granted: 1971-06-28
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Expires: 1988-12-23
Abstract
Abstract A POWER VALVE ASSEMBLY HAS A HOUSING PORTION WITH FIRST AND SECOND PASSAGES FORMED THEREIN RESPECTIVELY CONTAINING FIRST AND SECOND SPRING-LOADED VALVE MEMBERS FOR CONTROLLING THE FLOW OF FUEL THERETHROUGH, A LEVER MEMBER IS EFFECTIVE UPON ACTUATION TO SEQUENTIALLY ENGAGE THE FIRST AND SECOND VALVE MEMBERS SO AS TO AFFECT STAGED OPENING THEREOF.
Inventors
- 👤 William E Mccollough
- 👤 Ronald E Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:51
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/12; F02M7/133; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |