Patent DE1101550B successfully refreshed from Google Patents.
US2633218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid clutch with removable members
Assignee: Individual
•
Filing: 1949-05-05
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Granted: 1953-03-31
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Expires: 1969-05-05
Abstract
No abstract record available.
Inventors
- 👤 Pielstick Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:02
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/06; F16D25/061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1978687A
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GB449077A
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US2120092A
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US2395459A
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US2372151A
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US2464975A
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US2485688A
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US2543634A
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US2437430A
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US2428336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |