US2543884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for cracking and coking heavy hydryocarbons
Assignee: Standard Oil Development Co
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Filing: 1947-08-12
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Granted: 1951-03-06
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Expires: 1967-08-12
Abstract
No abstract record available.
Inventors
- 👤 Weikart John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:29
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/28; C10G9/32; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS FOR THE PRODUCTION OF VALUABLE PRODUCTS FROM HEAVY RESIDUAL HYDROCARBON OILS WHICH COMPRISES CONTACTING SAID HEAVY RESIDUAL HYDROCARBON OILS WITH HOT FINELY DIVIDED COKE IN AN INITIAL CONVERSION ZONE AT A TEMPERTURE ABOVE 900* F. FOR A RELATIVELY SHORT PERIOD TO CAUSE MILD CRACKING AND VAPORIZATION OF THE LESS REFRACTORY PORTIONS OF THE OILS BUT FOR AN INSUFFICIENT TIME TO EFFECT EXTENSIVE COKING OF SAID OILS, SEGREGATING AND RECOVERING THE VAPORS FROM SAID INITIAL COVERSION ZONE, PASSING THE COKE PARTICLES AND UNVAPO-
Claim 2
Dependent Claim
84 words
A PROCESS FOR THE PRODUCTION OF VALUABLE PRODUCTS FROM HEAVY RESIDUAL HYDROCARBON OILS WHICH COMPRISES CONTACTING SAID HEAVY RESIDUAL HYDROCARBON OILS WITH HOT FINELY DIVIDED COKE IN AN INITIAL CONVERSION ZONE AT A TEMPERTURE ABOVE 900* F. FOR A RELATIVELY SHORT PERIOD TO CAUSE MILD CRACKING AND VAPORIZATION OF THE LESS REFRACTORY PORTIONS OF THE OILS BUT FOR AN INSUFFICIENT TIME TO EFFECT EXTENSIVE COKING OF SAID OILS, SEGREGATING AND RECOVERING THE VAPORS FROM SAID INITIAL COVERSION ZONE, PASSING THE COKE PARTICLES AND UNVAPO-
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) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |