US2694388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained hydraulic valve train length adjusting mechanism
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1950-12-30
•
Granted: 1954-11-16
•
Expires: 1970-12-30
Abstract
No abstract record available.
Inventors
- 👤 Gammon Howard Mckee
- 👤 Forrest W Sward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:51
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2109459A
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US2109816A
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US2203952A
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US2279963A
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US2404241A
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US2577852A
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US2542036A
Cited
US2460651A
Cited
US2438631A
Cited
US2553756A
Cited
US2612419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |