Patent US3050459A successfully refreshed from Google Patents.
US3050459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stage conversion of heavy oils
Assignee: Hydrocarbon Research Inc
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Filing: 1959-01-13
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Granted: 1962-08-21
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Expires: 1979-01-13
Abstract
No abstract record available.
Inventors
- 👤 Seymour C Schuman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:07
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/12; C10G45/00; C10G45/02; C10G45/14; C10G45/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR FEFINING A SULFUR-CONTAINING HEAVY OIL HAVING AT LEAST 10% BY VOLUME OF HYDROCARBONS BOILING ABOVE 900* F., WHICH COMPRISES CRACKING SAID OIL WHILE SUBSTANTIALLY IN THE LIQUID STATE AND IN THE PRESENCE OF HYDROGEN AT A PRESSRE OF AT LEAST 800 P.S.I.G. TO CONVERT AT LEAST 25% BY VOLUME OF SAID HYDROCARBONS BOILING ABOVE 900* F. TO HYDROCARBONS BOILING NOT IN EXCESS OF 900* F., SEPARATING AND REMOVING SUBSTANTIALLY ALL RESIDUAL HYDROCARBONS BOILING ABOVE 900* F. FROM THE THUS CRACKED OIL, AND REACTING THE REMAINDER OF SAID CRACKED OIL SUBSTANTIALLY FREE OF HYDROCARBONS BOILING ABOVE 900* F.
Claim 2
Dependent Claim
100 words
A PROCESS FOR FEFINING A SULFUR-CONTAINING HEAVY OIL HAVING AT LEAST 10% BY VOLUME OF HYDROCARBONS BOILING ABOVE 900* F., WHICH COMPRISES CRACKING SAID OIL WHILE SUBSTANTIALLY IN THE LIQUID STATE AND IN THE PRESENCE OF HYDROGEN AT A PRESSRE OF AT LEAST 800 P.S.I.G. TO CONVERT AT LEAST 25% BY VOLUME OF SAID HYDROCARBONS BOILING ABOVE 900* F. TO HYDROCARBONS BOILING NOT IN EXCESS OF 900* F., SEPARATING AND REMOVING SUBSTANTIALLY ALL RESIDUAL HYDROCARBONS BOILING ABOVE 900* F. FROM THE THUS CRACKED OIL, AND REACTING THE REMAINDER OF SAID CRACKED OIL SUBSTANTIALLY FREE OF HYDROCARBONS BOILING ABOVE 900* F.
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) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |