US3753891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split-stream reforming to upgrade low-octane hydrocarbons
Assignee: Individual
•
Filing: 1971-01-15
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Granted: 1973-08-21
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Expires: 1991-01-15
Abstract
Abstract A PROCESSING COMBINATION IS DESCRIBED FOR UPGRADING LOW BOILING HYDROCARBONS BY A COMBINATIOON OF CATALYTIC REFORMING AND SELECTIVE CONVERSION OF PARAFFINIC COMPONENTS THEREIN TO ENCHANCE YIELD OF ARROMATIC HYDROCARBONS BY CONTACT WITH A CRYSTALLINE ALUMINOSILICATE CATALYST HAVING PARTICULAR CONVERSION CHARACTERISTICS.
Inventors
- 👤 R Graven
- 👤 H Heinemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:56
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/40; B01J29/70; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/095; C10L; C10L1/00; C10L1/04; C10L1/06; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42
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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |