Patent US2604936A successfully refreshed from Google Patents.
US2604936A
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Method and apparatus for controlling the generation and application of heat
Assignee: Metal Carbides Corp
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Filing: 1946-01-15
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Granted: 1952-07-29
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Expires: 1966-01-15
Abstract
No abstract record available.
Inventors
- 👤 William L Kaehni
- 👤 Frank J Kaehni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:44
CPC Classifications
F; F23; F23D; F23D99/00; F23D99/002; F23D99/004; F23C; F23C99/00; F23C99/001; F23D14/00; F23D14/46; F23D14/84; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; F23D2206/00; F23D2206/0015; F23D2206/0021; F23D2900/00; F23D2900/21; F23D2900/21007; Y; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US867878A
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US937759A
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US1399422A
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US2057431A
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US2127977A
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US2133654A
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US2356489A
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US2294498A
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US2364645A
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US2511177A
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US2411737A
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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) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |