Patent US2569150A successfully refreshed from Google Patents.
US2569150A
Expired / Lapsed
US
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Casting method and apparatus
Assignee: Individual
•
Filing: 1948-05-07
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Granted: 1951-09-25
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Expires: 1968-05-07
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/007; B22D11/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190203367A
Cited
US1943351A
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US1995258A
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US2091588A
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US2092284A
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US2225373A
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US2240313A
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US2301902A
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US2242350A
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US2290083A
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US2371604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |