US2685559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of heavy hydrocarbon oils
Assignee: Standard Oil Development Co
•
Filing: 1950-08-29
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Granted: 1954-08-03
•
Expires: 1970-08-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Alexis Voorhies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:42
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
THE PROCESS OF PRODUCING GASOLINE FROM HEAVY RESIDUAL HYDROCARBON OILS WHICH COMPRISES CONTACTING SAID OILS AT A TEMPERATURE OF ABOUT 1050*-1110* F. WITH A DENSE TURBULENT FLUIDIZED MASS OF SUBDIVIDED SOLIDS COMPOSED OF ABOUT 94-97 WEIGHT PER CENT OF CATALYTICALLY INACTIVE SOLIDS PHYSICALLY ADMIXED WITH ABOUT 3-6 WEIGHT PER CENT OF A SOLID CRACKING CATALYST, SAID INERT SOLIDS AND SAID CATALYST HAVING PARTICLE SIZES WITHIN THE GENERAL RANGE OF 50 TO 400 MESH, SAID CONTACTING BEING CONTINUED FOR A TIME SUFFICIENT TO EFFECT COKING OF SAID OILS.
Claim 2
Dependent Claim
87 words
THE PROCESS OF PRODUCING GASOLINE FROM HEAVY RESIDUAL HYDROCARBON OILS WHICH COMPRISES CONTACTING SAID OILS AT A TEMPERATURE OF ABOUT 1050*-1110* F. WITH A DENSE TURBULENT FLUIDIZED MASS OF SUBDIVIDED SOLIDS COMPOSED OF ABOUT 94-97 WEIGHT PER CENT OF CATALYTICALLY INACTIVE SOLIDS PHYSICALLY ADMIXED WITH ABOUT 3-6 WEIGHT PER CENT OF A SOLID CRACKING CATALYST, SAID INERT SOLIDS AND SAID CATALYST HAVING PARTICLE SIZES WITHIN THE GENERAL RANGE OF 50 TO 400 MESH, SAID CONTACTING BEING CONTINUED FOR A TIME SUFFICIENT TO EFFECT COKING OF SAID OILS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |