Patent US3794483A successfully refreshed from Google Patents.
US3794483A
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Process for delivering fuel and air to a rotary reduction kiln
Assignee: Allis Chalmers Corp
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Filing: 1972-10-31
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Granted: 1974-02-26
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Expires: 1992-10-31
Abstract
Abstract A PROCESS AND APPARATUS ARE DISCLOSED FOR DELIVERING FUEL AND AIR TO A ROTARY REDUCTION KILN WHEREIN BOTH THE FUEL AND AIR ALTERNATELY FLOW THROUGH THE SAME NOZZLE.
Inventors
- 👤 E Rossi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:56
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/08; F; F27; F27B; F27B7/00; F27B7/20; F27B7/36; F27B7/362; F27B2007/367; F27D; F27D7/00; F27D7/02; F27D2007/026; F27D19/00; F27D2019/0028; F27D2019/0068; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |