Patent US2456984A successfully refreshed from Google Patents.
US2456984A
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Apparatus for quenching metallic articles
Assignee: Mueller Co
•
Filing: 1942-12-08
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Granted: 1948-12-21
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Expires: 1962-12-08
Abstract
No abstract record available.
Inventors
- 👤 Frank H Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:20
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/16; C21D1/00; C21D1/62; C21D1/63
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1513628A
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US1881611A
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US2202759A
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US2215724A
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US2196960A
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US2280470A
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US2348232A
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US2329188A
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US2385700A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-21 | 1952-06-21 | 1952-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-21 | 1956-06-21 | 1956-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-21 | 1960-06-21 | 1960-12-21 | $7700.00 | Window Closed / Lapsed |