Patent US3228869A successfully refreshed from Google Patents.
US3228869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil shale retorting with shale oil recycle
Assignee: Union Oil Company of California
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Filing: 1964-05-19
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Granted: 1966-01-11
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Expires: 1984-05-19
Abstract
No abstract record available.
Inventors
- 👤 Glenn E Irish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:13
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A METHOD OF IMPROVING THE TRANSPORTABLILITY OF THE LIQUID PRODUCT FROM A NON-COMBUSTIVE RETORTING PROCESS FOR RETORTING PARTICULATE OIL-PRODUCING HYDROCARBONACEOUS SOLIDS WHICH COMPRISES: EDUCTING HYDROCARBONS FROM SAID SOLIDS BY CONTACTING SAID SOLIDS WITH A SUBSTANTIALLY OXYGEN-FREE HOT EDUCTION FLUID IN AN EDUCITON ZONE, SAID HOT EDUCTION FLUID COMPRISING A MIXTURE OF HOT GASES AND RECYCLED PRODUCT OIL; COLLECTING LIQUID PRODUCT OIL AND GAS FROM SAID EDUCTION ZONE; AND RECYCLING TO THE INLET OF SAID EDUCTION ZONE AS A COMPONENT OF SAID HOT EDUCTION FLUIDS, A QUANTITY OF SAID LIQUID PRODUCT OIL SUFFICIENT TO EFFECT A REDUCTION IN THE POUR POINT OF THE NET RECOVERED LIQUID PRODUCT OIL OF AT LEAST 5*F. OVER THAT OBTAINED WITHOUT SAID RECYCLE OF LIQUID PRODUCT OIL, SAID RECYCLED LIQUID PRODUCT OIL NOT EXCEEDING ABOUT 50 PERCENT OF THE NET RECOVERED LIQUID PRODUCT OIL, AND SAID RECYCLED LIQUID PRODUCT OIL COMPONENT OF SAID EDUCATION FLUID BEING ESSENTAILLY COMPLETELY VAPORIZED ON CONTACT WITH SAID SOLIDS.
Claim 2
Independent Claim
158 words
A METHOD OF IMPROVING THE TRANSPORTABLILITY OF THE LIQUID PRODUCT FROM A NON-COMBUSTIVE RETORTING PROCESS FOR RETORTING PARTICULATE OIL-PRODUCING HYDROCARBONACEOUS SOLIDS WHICH COMPRISES: EDUCTING HYDROCARBONS FROM SAID SOLIDS BY CONTACTING SAID SOLIDS WITH A SUBSTANTIALLY OXYGEN-FREE HOT EDUCTION FLUID IN AN EDUCITON ZONE, SAID HOT EDUCTION FLUID COMPRISING A MIXTURE OF HOT GASES AND RECYCLED PRODUCT OIL; COLLECTING LIQUID PRODUCT OIL AND GAS FROM SAID EDUCTION ZONE; AND RECYCLING TO THE INLET OF SAID EDUCTION ZONE AS A COMPONENT OF SAID HOT EDUCTION FLUIDS, A QUANTITY OF SAID LIQUID PRODUCT OIL SUFFICIENT TO EFFECT A REDUCTION IN THE POUR POINT OF THE NET RECOVERED LIQUID PRODUCT OIL OF AT LEAST 5*F. OVER THAT OBTAINED WITHOUT SAID RECYCLE OF LIQUID PRODUCT OIL, SAID RECYCLED LIQUID PRODUCT OIL NOT EXCEEDING ABOUT 50 PERCENT OF THE NET RECOVERED LIQUID PRODUCT OIL, AND SAID RECYCLED LIQUID PRODUCT OIL COMPONENT OF SAID EDUCATION FLUID BEING ESSENTAILLY COMPLETELY VAPORIZED ON CONTACT WITH SAID SOLIDS.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |