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Patent US2428434A successfully refreshed from Google Patents.
US2428434A
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Centrifugal casting apparatus
Assignee: Individual
•
Filing: 1943-11-05
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Granted: 1947-10-07
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Expires: 1963-11-05
Abstract
No abstract record available.
Inventors
- 👤 George A Rubissow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:40
CPC Classifications
B; B22; B22D; B22D13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320910A
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US1501337A
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US1479629A
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US1474432A
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US1931888A
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US2222266A
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US2192043A
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US2325782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |