US2753931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-burner control system
Assignee: General Controls Co
•
Filing: 1952-01-28
•
Granted: 1956-07-10
•
Expires: 1972-01-28
Abstract
No abstract record available.
Inventors
- 👤 William A Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:08
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23Q; F23Q9/00; F23Q9/08; F23Q9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2294693A
Cited
US2288890A
Cited
GB531301A
Cited
US2457378A
Cited
US2517363A
Cited
US2505432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |