Patent US2626892A successfully refreshed from Google Patents.
US2626892A
Expired / Lapsed
US
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Cracking residual fractions containing salts
Assignee: Standard Oil Development Co
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Filing: 1950-12-09
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Granted: 1953-01-27
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Expires: 1970-12-09
Abstract
No abstract record available.
Inventors
- 👤 John H Mcculley
- 👤 Herbert P Dayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:40
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A CRACKING PROCESS WHICH COMPRISES HEATING A NEUTRALIZED RESIDUAL FRACTION FROM CRUDE PETROLEUM HAVING A SALT CONTENT NO GREATER THAN 0.8% BY WEIGHT AND CONTAINING ORGANIC AND INORGANIC SALTS IN EXCESS OF SALTS NATURALLY PRESENT IN THE CRUDE PETROLEUM TO A TEMPERATURE IN THE RANGE BETWEEN 700* TO 880* F. AND BELOW THE CRACKING TEMPERATURE OF SAID RESIDUAL FRACTION, SEPARATELY HEATING A REFRACTORY GAS OIL FRACTION BOILING IN THE RANGE FROM 600* TO 700* F. TO A TEMPERATURE IN THE RANGE BETWEEN 940* AND 1050* F., SEPARATELY CHARGING SAID RESIDUAL FRACTION AND SAID GAS OIL FRACTION IN A RATIO IN THE
Claim 2
Dependent Claim
101 words
A CRACKING PROCESS WHICH COMPRISES HEATING A NEUTRALIZED RESIDUAL FRACTION FROM CRUDE PETROLEUM HAVING A SALT CONTENT NO GREATER THAN 0.8% BY WEIGHT AND CONTAINING ORGANIC AND INORGANIC SALTS IN EXCESS OF SALTS NATURALLY PRESENT IN THE CRUDE PETROLEUM TO A TEMPERATURE IN THE RANGE BETWEEN 700* TO 880* F. AND BELOW THE CRACKING TEMPERATURE OF SAID RESIDUAL FRACTION, SEPARATELY HEATING A REFRACTORY GAS OIL FRACTION BOILING IN THE RANGE FROM 600* TO 700* F. TO A TEMPERATURE IN THE RANGE BETWEEN 940* AND 1050* F., SEPARATELY CHARGING SAID RESIDUAL FRACTION AND SAID GAS OIL FRACTION IN A RATIO IN THE
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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) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |