US2440700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid burner safety control apparatus with ignition timing
Assignee: Honeywell Inc
•
Filing: 1945-08-03
•
Granted: 1948-05-04
•
Expires: 1965-08-03
Abstract
No abstract record available.
Inventors
- 👤 John O Rosche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:22
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/022; F23N5/20; F23N2221/00; F23N2221/04; F23N2227/00; F23N2227/06; F23N2227/28; F23N2229/00; F23N2229/12; F23N2229/14; F23N5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1602175A
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US1708918A
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US2081091A
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US2113858A
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US2216556A
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US2230732A
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US2267187A
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US2369530A
Cited
US2379872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-04 | 1951-11-03 | 1952-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-04 | 1955-11-03 | 1956-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-04 | 1959-11-03 | 1960-05-04 | $7700.00 | Window Closed / Lapsed |