US2933069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for fluid operated mechanism
Assignee: Individual
•
Filing: 1956-11-02
•
Granted: 1960-04-19
•
Expires: 1976-11-02
Abstract
No abstract record available.
Inventors
- 👤 Jean Louis Gratzmuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:11
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/34; F; F15; F15B; F15B1/00; F15B1/02; F15B1/022; F15B1/024; F15B1/025; F15B13/00; F15B13/02; F15B13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1037039A
Cited
US674858A
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US853785A
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US1993195A
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US2127501A
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US2275872A
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DE726789C
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US2523572A
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US2533559A
Cited
US2548221A
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US2669628A
Cited
FR1056143A
Cited
US2736295A
Cited
FR1098565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |