Patent US2596462A successfully refreshed from Google Patents.
US2596462A
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Jack mechanism
Assignee: Joy Manufacturing Co
•
Filing: 1947-11-21
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Granted: 1952-05-13
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Expires: 1967-11-21
Abstract
No abstract record available.
Inventors
- 👤 Charles F Ball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:30
CPC Classifications
E; E21; E21D; E21D11/00; E21D11/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US244718A
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US1027286A
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US1677860A
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US2189052A
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US2251435A
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US2377279A
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US2408387A
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US2430962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |