Patent US2596340A successfully refreshed from Google Patents.
US2596340A
Expired / Lapsed
US
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Drawbench unloading arm mechanism
Assignee: Alcoa Corp
•
Filing: 1947-06-19
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Granted: 1952-05-13
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Expires: 1967-06-19
Abstract
No abstract record available.
Inventors
- 👤 Maurice W Mahns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:26
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/16; B21C1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1541118A
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US1855051A
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US1889039A
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US1940354A
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GB451481A
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US2301674A
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US2262432A
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US2367793A
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US2369467A
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US2446438A
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 |