Patent US2543503A successfully refreshed from Google Patents.
US2543503A
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Casting machine
Assignee: Lester Engineering Co
•
Filing: 1946-08-06
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Granted: 1951-02-27
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Expires: 1966-08-06
Abstract
No abstract record available.
Inventors
- 👤 Lester Nathan
- 👤 Thomas J Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:13
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/03; B29C45/17; B29C45/64; B29C45/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1684405A
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US1881232A
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US2115590A
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US2262615A
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US2273713A
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US2269953A
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US2365282A
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US2298044A
Cited
US2358857A
Cited
US2333056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |