US3561902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant burner
Assignee: Individual
•
Filing: 1968-09-19
•
Granted: 1971-02-09
•
Expires: 1988-09-19
Abstract
Abstract A RADIANT BURNER COMPOSED OF A HOUSING, A GAS ORIFICE, A VENTURI, A PLENUM, A SEPARATING PLATE WITH PORTS THEREIN, A COMBUSTION CHAMBER, RADIANT ELEMENTS AND EXHAUST OPENINGS.
Inventors
- 👤 Willie H Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:08
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/14; F23D14/145; F23D14/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |