US2446718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic safety control for fuel burners
Assignee: General Controls Co
•
Filing: 1944-11-13
•
Granted: 1948-08-10
•
Expires: 1964-11-13
Abstract
No abstract record available.
Inventors
- 👤 William A Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:10
CPC Classifications
F; F23; F23Q; F23Q9/00; F23Q9/08; F23Q9/12; F23N; F23N5/00; F23N5/02; F23N5/08; F24; F24C; F24C3/00; F24C3/12; Y; Y10; Y10T; Y10T137/00; Y10T137/1407; Y10T137/1516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2237577A
Cited
US2007714A
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US2081091A
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US2077297A
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US2217785A
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US2198453A
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US2201398A
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US2291805A
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US2306073A
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US2255496A
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US2275279A
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US2290775A
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US2304641A
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US2303952A
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US2296340A
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US2382216A
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US2285192A
Cited
US2345399A
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US2360166A
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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) | 1951-08-10 | 1952-02-09 | 1952-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-10 | 1956-02-09 | 1956-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-10 | 1960-02-09 | 1960-08-10 | $7700.00 | Window Closed / Lapsed |