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US2669332A
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Variable-speed hydraulic coupling
Assignee: THOMAS HYDRAULIC SPEED CONTROL
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Filing: 1949-11-04
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Granted: 1954-02-16
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Expires: 1969-11-04
Abstract
No abstract record available.
Inventors
- 👤 Scott H Gasche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:56
CPC Classifications
F; F16; F16D; F16D31/00; F16D31/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US471656A
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USRE22577E
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US2371227A
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US2420305A
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US2496635A
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US2526914A
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US2531014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |