US3206388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of asphaltic crude oils
Assignee: Phillips Petroleum Co
•
Filing: 1961-07-31
•
Granted: 1965-09-14
•
Expires: 1981-07-31
Abstract
No abstract record available.
Inventors
- 👤 Armin C Pitchford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:49
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A PROCESS COMPRISING CONTACTING AN ASPHALTIC PETROLEUM OIL IN WHICH THE CONCENTRATION OF 100 PENETRATION ASPHALT IS IN THE RANGE OF ABOUT 8 TO 80 VOLUME PERCENT WITH A SOLVENT CONSISTING ESSENTIALLY OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF N-PROPYL ALCOHOL AND ISOPROPYL ALCOHOL AND CONTAINING FROM ABOUT 0.75 TO ABOUT 4.5 PERCENT BY VOLUME OF WATER, THE RATIO OF SOLVENT TO OIL BEING FROM ABOUT 4:1 TO ABOUT 20:1, AT A TEMPERATURE WITHIN THE APPROXIMATE RANGE OF 175* TO 180*F. AND AT SUFFICIENT PRESSURE FOR PROCESS FLOW, AND CONTROLLING THE WATER CONCENTRATION SO AS TO PRODUCE AN ASPHALT-PHASE CONTAINING PAVING GRADE ASPHALT HAVING A PENETRATION POINT IN THE RANGE OF 85 TO 100 (1/10 MILLIMETERS WITH 100 G. FOR 5 SEC. AT 77*F.) AND AN OIL-CONTAINING PHASE SUITABLE FOR CATALYTIC CRACKING TO GASOLINE.
Claim 2
Dependent Claim
136 words
A PROCESS COMPRISING CONTACTING AN ASPHALTIC PETROLEUM OIL IN WHICH THE CONCENTRATION OF 100 PENETRATION ASPHALT IS IN THE RANGE OF ABOUT 8 TO 80 VOLUME PERCENT WITH A SOLVENT CONSISTING ESSENTIALLY OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF N-PROPYL ALCOHOL AND ISOPROPYL ALCOHOL AND CONTAINING FROM ABOUT 0.75 TO ABOUT 4.5 PERCENT BY VOLUME OF WATER, THE RATIO OF SOLVENT TO OIL BEING FROM ABOUT 4:1 TO ABOUT 20:1, AT A TEMPERATURE WITHIN THE APPROXIMATE RANGE OF 175* TO 180*F. AND AT SUFFICIENT PRESSURE FOR PROCESS FLOW, AND CONTROLLING THE WATER CONCENTRATION SO AS TO PRODUCE AN ASPHALT-PHASE CONTAINING PAVING GRADE ASPHALT HAVING A PENETRATION POINT IN THE RANGE OF 85 TO 100 (1/10 MILLIMETERS WITH 100 G. FOR 5 SEC. AT 77*F.) AND AN OIL-CONTAINING PHASE SUITABLE FOR CATALYTIC CRACKING TO GASOLINE.
References Cited (Backward Citations)
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GB574460A
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US2966454A
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US3072559A
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |