Patent US3530065A successfully refreshed from Google Patents.
US3530065A
Expired / Lapsed
US
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Catalytic cracking of hydrocarbons
Assignee: Mobil Oil AS
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Filing: 1968-06-27
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Granted: 1970-09-22
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Expires: 1988-06-27
Abstract
No abstract record available.
Inventors
- 👤 Wilbur K Leaman
- 👤 Charles J Plank
- 👤 Bohdan W Wojciechowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:41
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN THE CRACKING OF GAS OILS TO GASOLINE AT A CONVERSION LEVEL OF AT LEAST ABOUT 50% EMPLOYING HIGH SPACE VELOCITIES AND A STREAM STABLE RARE EARTH EXCHANGED CRYSTALLINE ALUMINOSILICATE AT A TEMPERATURE IN THE RANGE OF 850*F. TO 1000*F., THE METHOD FOR IMPROVING THE C5+ GASOLINE SELECTIVITY WHICH COMPRISES EMPLOYING A GAS OIL CHARGE LIQUID HOURLY SPACE VELOCITY IN THE REACTION ZONE WITHIN THE RANGE OF FROM ABOUT 32 TO ABOUT 256 V./HR./V. AND MAINTAINING THE RESIDENCE TIME OF THE CATALYST IN THE REACTION ZONE WITHIN THE RANGE OF 1 TO 3 MINUTES.
Claim 2
Dependent Claim
94 words
IN THE CRACKING OF GAS OILS TO GASOLINE AT A CONVERSION LEVEL OF AT LEAST ABOUT 50% EMPLOYING HIGH SPACE VELOCITIES AND A STREAM STABLE RARE EARTH EXCHANGED CRYSTALLINE ALUMINOSILICATE AT A TEMPERATURE IN THE RANGE OF 850*F. TO 1000*F., THE METHOD FOR IMPROVING THE C5+ GASOLINE SELECTIVITY WHICH COMPRISES EMPLOYING A GAS OIL CHARGE LIQUID HOURLY SPACE VELOCITY IN THE REACTION ZONE WITHIN THE RANGE OF FROM ABOUT 32 TO ABOUT 256 V./HR./V. AND MAINTAINING THE RESIDENCE TIME OF THE CATALYST IN THE REACTION ZONE WITHIN THE RANGE OF 1 TO 3 MINUTES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |