US2472384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-burner control system
Assignee: General Controls Co
•
Filing: 1947-04-01
•
Granted: 1949-06-07
•
Expires: 1967-04-01
Abstract
No abstract record available.
Inventors
- 👤 William A Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:35
CPC Classifications
F; F23; F23Q; F23Q9/00; F23Q9/08; F23Q9/12; F23Q9/14; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1939; Y10T137/1963; Y10T74/00; Y10T74/18; Y10T74/18856
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US123439A
Cited
US2346704A
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US1614798A
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US1870007A
Cited
US1982562A
Cited
US2031415A
Cited
US2291606A
Cited
US2385699A
Cited
US2411230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |