US2486340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety control and ignition system for fuel burners
Assignee: ROBERTSHAW FULTON CONTROIS COM
•
Filing: 1946-12-19
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Granted: 1949-10-25
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Expires: 1966-12-19
Abstract
No abstract record available.
Inventors
- 👤 Charles K Strobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:11
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/14; F23N5/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2343001A
Cited
US2170497A
Cited
US2260977A
Cited
US2327690A
Cited
US2380125A
Cited
US2397311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |