US3667746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace for continuous heat processing of various materials
Assignee: Individual
•
Filing: 1970-01-29
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Granted: 1972-06-06
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Expires: 1990-01-29
Abstract
Abstract A FURNACE FOR CONTINUOUS HEAT PROCESSING OF VARIOUS MATERIALS COMPRISING A RING-SHAPED HEARTH WITH A PLATFORM FOR PLACEMENT OF THE MATERIAL TO BE PROCESSED, THE HEARTH BEING ROTATABLE IN AN ANNULAR PASSAGE OF THE FURNACE. THE HEARTH IS HOLLOW AND HAS AN INNER CHAMBER FOR PASSING COMBUSTIBLE GASES FROM A BURNER TO THE MATERIAL VIA APERTURES IN THE PLATFORM.
Inventors
- 👤 Gleb Nikolaevich Makarov
- 👤 Boris Nikolaevich Zhitov
- 👤 Anatoly Mikhailovich Zagorets
- 👤 Jury Germanovich Korolev
- 👤 Konstantin Ivanovich Syskov
- 👤 Jury Yakovlevich Filonenko
- 👤 Semen Semenovich Dvorin
- 👤 Ruvim Zinovievich Lerner
- 👤 Fuat Akhtemovich Mustafin
- 👤 Alexandr Semenovich Semenov
- 👤 Leonid Iosifovich Erkin
- 👤 Nikolai Sergeevich Grayaznov
- 👤 Izrail Mikhailovich Lazovsky
- 👤 Petr Yakovlevich Nefebov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:14
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/16; C; C22; C22B; C22B1/00; C22B1/14; C22B1/16; C22B1/20; F27B21/00; F27B21/06; F27B3/00; F27B3/02
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |