US2436424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-pressure-operated mechanism
Assignee: United Shoe Machinery Corp
•
Filing: 1942-08-28
•
Granted: 1948-02-24
•
Expires: 1962-08-28
Abstract
No abstract record available.
Inventors
- 👤 Fred C Eastman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:01
CPC Classifications
F; F42; F42C; F42C17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US585649A
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US699900A
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US1144974A
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US1278038A
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US1823426A
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US1911138A
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US1954920A
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US1996702A
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US1898081A
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US2130317A
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US2223223A
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US2270300A
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US2301098A
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US2271717A
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US2300435A
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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) | 1951-02-23 | 1951-08-25 | 1952-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-23 | 1955-08-25 | 1956-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-23 | 1959-08-25 | 1960-02-24 | $7700.00 | Window Closed / Lapsed |