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US2867226A
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Method and apparatus for treating apparatus for rapid quenching of metals
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1956-05-31
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Granted: 1959-01-06
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Expires: 1976-05-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Williams
- 👤 Ewell E Mcdole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:22
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/62; C21D1/63; C21D1/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1047639A
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US1687458A
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GB458451A
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US2317233A
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US2354656A
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US2389488A
Cited
US2516282A
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US2638909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |