Patent US2494833A successfully refreshed from Google Patents.
US2494833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermopile and pilot burner
Assignee: General Controls Co
•
Filing: 1945-04-16
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Granted: 1950-01-17
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Expires: 1965-04-16
Abstract
No abstract record available.
Inventors
- 👤 William R Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:10
CPC Classifications
F; F23; F23Q; F23Q9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US383464A
Cited
US535489A
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US1952550A
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US2189829A
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US2124915A
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US2236609A
Cited
US2305585A
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US2390578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |