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Patent US3277948A successfully refreshed from Google Patents.
US3277948A
Expired / Lapsed
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Radiant burner utilizing flame quenching phenomena
Assignee: THERMAL ENGINEERING Corp
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Filing: 1960-09-09
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Granted: 1966-10-11
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Expires: 1980-09-09
Abstract
No abstract record available.
Inventors
- 👤 Willie H Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:13
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/14; F23D14/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1308364A
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US1313196A
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GB191108480A
Cited
US1113171A
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US1215229A
Cited
US1896286A
Cited
DE624438C
Cited
US2515845A
Cited
US2618322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |