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Patent US2950512A successfully refreshed from Google Patents.
US2950512A
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Casting apparatus and method
Assignee: Revere Copper and Brass Inc
•
Filing: 1957-04-02
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Granted: 1960-08-30
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Expires: 1977-04-02
Abstract
No abstract record available.
Inventors
- 👤 Richard A Wilkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:12
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/14; B21; B21C; B21C37/00; B21C37/06; B21C37/14; Y; Y10; Y10S; Y10S29/00; Y10S29/038; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US29276A
Cited
US364177A
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US370436A
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US1342127A
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US1926320A
Cited
DE876572C
Cited
US2640860A
Cited
US2690002A
Cited
US2692411A
Cited
US2688169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |