US2608245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner ignition and flame detection means
Assignee: Peabody Engineering Corp
•
Filing: 1950-03-27
•
Granted: 1952-08-26
•
Expires: 1970-03-27
Abstract
No abstract record available.
Inventors
- 👤 Edward R Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/08; F23N5/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1535240A
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US2136256A
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US2304200A
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US2295045A
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US2306073A
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US2402763A
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US2335471A
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US2285704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |