Patent US2065207A successfully refreshed from Google Patents.
US2065207A
Expired / Lapsed
US
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Process for melting and casting high purity metal
Assignee: American Smelting and Refining Co
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Filing: 1933-02-04
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Granted: 1936-12-22
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Expires: 1953-02-04
Abstract
No abstract record available.
Inventors
- 👤 Betterton Jesse Oatman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:11
CPC Classifications
F; F27; F27B; F27B3/00; F27B3/10; F27B3/20; C; C22; C22B; C22B15/00; C22B15/0026; C22B15/006; C22B9/00; C22B9/006; F27B3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-12-22 | 1940-06-22 | 1940-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-12-22 | 1944-06-22 | 1944-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-12-22 | 1948-06-22 | 1948-12-22 | $7700.00 | Window Closed / Lapsed |