US2624398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocell controlled safety system for fuel burners
Assignee: Combustion Control Corp
•
Filing: 1947-08-22
•
Granted: 1953-01-06
•
Expires: 1967-08-22
Abstract
No abstract record available.
Inventors
- 👤 Thomson E Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:02
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)
US2274384A
Cited
US2347826A
Cited
US2415167A
Cited
US2415168A
Cited
US2416781A
Cited
US2462326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |