US3751228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for reforming hydrocarbons under pressure
Assignee: Individual
•
Filing: 1970-12-16
•
Granted: 1973-08-07
•
Expires: 1990-12-16
Abstract
Abstract An apparatus for reforming hydrocarbons under pressure comprising a heat-exchange chamber incorporating reaction tubes for effecting a process of primary reforming and a shaft chamber for effecting a process of secondary reforming located at the open ends of the reaction tubes. The heat-exchange chamber is separated from the shaft chamber by a double transverse partition having walls forming an intermiate chamber for supplying gaseous reagents. This intermediate chamber is completely isolated from the heat-exchange chamber and is in communication with the shaft chamber.
Inventors
- 👤 V Semenov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:07
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/06; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/382; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00212
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2894826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |