Patent US2900960A successfully refreshed from Google Patents.
US2900960A
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US
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Hydraulic control device
Assignee: Individual
•
Filing: 1955-01-03
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Granted: 1959-08-25
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Expires: 1975-01-03
Abstract
No abstract record available.
Inventors
- 👤 Gratzmuller Jean Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:16
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/08; F15B13/00; F15B13/02; F15B13/04; H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/34; F15B2211/00; F15B2211/20; F15B2211/21; F15B2211/212; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/32; F15B2211/329; F15B2211/35; F15B2211/40; F15B2211/405; F15B2211/40507; F15B2211/415; F15B2211/41554; F15B2211/60; F15B2211/635; F15B2211/6355; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7052; H01H2033/308
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1947191A
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US2231708A
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US2308261A
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US2314398A
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US2464237A
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US2430128A
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US2514747A
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US2473687A
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US2491112A
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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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |