US2547735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant gas burner and means for removing products of combustion
Assignee: Selas Corp of America
•
Filing: 1946-04-18
•
Granted: 1951-04-03
•
Expires: 1966-04-18
Abstract
No abstract record available.
Inventors
- 👤 Blaha Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:13
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1144785A
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US1345361A
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US2117356A
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US2215079A
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US2220928A
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US2268987A
Cited
US2268988A
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US2287246A
Cited
US2379017A
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US2361097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |