US3764482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for recovering gas generated in a coke oven when charging coal
Assignee: Mitsubishi Chemical Corp
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Filing: 1971-05-28
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Granted: 1973-10-09
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Expires: 1991-05-28
Abstract
Abstract IN A METHOD AND APPARATUS FOR RECOVERING GAS GENERATED IN A COKE OVEN WHEREIN A FLUID IS INJECTED INTO A CONDUIT INTERCONNECTING THE COKE OVEN AND A GAS COLLECTING MAIN, LOW PRESSURE GAS LIQUOR IS INJECTED DURING NORMAL OPERATION OF THE OVEN TO COOL THE GAS, AND HIGH PRESSURE GAS LIQUOR IS INJECTED DURING COAL CHARGING TO DRAW THE GAS IN THE COKE OVEN INTO THE GAS COLLECTING MAIN.
Inventors
- 👤 M Yoshida
- 👤 M Inoue
- 👤 S Koike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:48
CPC Classifications
C; C10; C10B; C10B27/00; C10B27/04
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |