US2678092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel burner safety control system
Assignee: General Controls Co
•
Filing: 1950-03-17
•
Granted: 1954-05-11
•
Expires: 1970-03-17
Abstract
No abstract record available.
Inventors
- 👤 William A Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:31
CPC Classifications
F; F23; F23Q; F23Q9/00; F23Q9/08; F23Q9/12; F23Q9/14; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1863373A
Cited
US2351277A
Cited
US2311785A
Cited
US2370326A
Cited
US2385530A
Cited
US2384696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |