US2785667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic mechanism for actuating an engine valve with variable timing
Assignee: Nordberg Manufacturing Co
•
Filing: 1953-11-18
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Granted: 1957-03-19
•
Expires: 1973-11-18
Abstract
No abstract record available.
Inventors
- 👤 Miller Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:51
CPC Classifications
F; F01; F01L; F01L9/00; F01L9/10; F01L9/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR758184A
Cited
DE641322C
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US2174526A
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US2447267A
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US2621640A
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US2565681A
Cited
US2602434A
Cited
US2670595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |