Patent US2587230A successfully refreshed from Google Patents.
US2587230A
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Hydraulic means for actuating frictional disk clutches
Assignee: Individual
•
Filing: 1946-07-27
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Granted: 1952-02-26
•
Expires: 1966-07-27
Abstract
No abstract record available.
Inventors
- 👤 Theodore A Schaad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:43
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/08; F16D25/082; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1241; Y10T279/1249; Y10T279/1258
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US2257364A
Cited
US2340315A
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US2452775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |