US2543262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner safety control system
Assignee: Combustion Control Corp
•
Filing: 1945-10-12
•
Granted: 1951-02-27
•
Expires: 1965-10-12
Abstract
No abstract record available.
Inventors
- 👤 Thomson Elihu Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:19
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/08; F23N5/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2078109A
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FR790994A
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FR47650E
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DE662292C
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US2343001A
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US2260977A
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US2361295A
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US2274384A
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US2358432A
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US2360532A
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US2388124A
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US2403609A
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US2379872A
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US2379873A
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US2372276A
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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) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |