US2551918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal fluid pressure operated clutch
Assignee: AUTOMATIC STEEL PRODUCTS Inc
•
Filing: 1946-04-06
•
Granted: 1951-05-08
•
Expires: 1966-04-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Wickwire
- 👤 Hans J Zimmermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:55
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/28; F16D43/284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE20508E
Cited
US1618643A
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US1814566A
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US2087380A
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GB414662A
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US2239568A
Cited
GB519226A
Cited
US2210416A
Cited
US2285652A
Cited
US2368299A
Cited
US2408327A
Cited
US2452008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |