Patent US3314404A successfully refreshed from Google Patents.
US3314404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine valve operating mechanism
Assignee: Individual
•
Filing: 1966-03-21
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Granted: 1967-04-18
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Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 Earl A Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:15
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/2405; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
AN INTERNAL COMBUSTION ENGINE COMPRISING IN COMBINATION A RECIPROCABLE VALVE SUPPORTED IN THE ENGINE, A ROCKER ARM BEARING ON THE VALVE AND HAVING AN EXTERNAL SPHERICAL SURFACE PIVOTED IN A CUP-SHAPED SURFACE ON A FULCRUM WHICH IS RECIPROCABLE WITHIN A GUIDE, A CAM BEARING AGAINST THE ROCKER ARM FOR OPERATING THE VALVE, AND AN AUTOMATIC LASH ADJUSTER FOR THE FULCRUM INCLUDING A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |