US2604148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety control system for fluid fuel burners
Assignee: General Electric Co
•
Filing: 1949-01-28
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Granted: 1952-07-22
•
Expires: 1969-01-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Jack Witherspoon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:20
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/42; F23N; F23N2239/00; F23N2239/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2113858A
Cited
US2170426A
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US2269443A
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US2230732A
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US2358432A
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US2449858A
Cited
US2486612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |