Patent US2876509A successfully refreshed from Google Patents.
US2876509A
Expired / Lapsed
US
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Apparatus for continuous casting of metal
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1953-06-19
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Granted: 1959-03-10
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Expires: 1973-06-19
Abstract
No abstract record available.
Inventors
- 👤 Owen M Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:46
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/16; B22D11/18; B22D11/181
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1139887A
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US1686823A
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US1983579A
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US2243425A
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US2371456A
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DE860243C
Cited
CH256026A
Cited
US2618477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |