US3228870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of asphaltic crude oils
Assignee: Phillips Petroleum Co
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Filing: 1964-12-14
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Granted: 1966-01-11
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Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Armin C Pitchford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:08
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR SIMULTANEOUSLY PRODUCING A PAVING GRADE ASPHALT AND AN OIL SUITABLE FOR CATALYTIC CRACKING TO PRODUCE GASOLINE BLENDING STOCKS FROM AN ASPHALT-CONTAINING OIL IN WHICH THE CONCENTRATION OF 100 PENETRATION ASPHALT IS IN THE RANGE OF 2 TO LESS THAN 8 VOLUME PERCENT WHICH COMPRISES THE STEPS OF: (1) CONTACTING SAID ASPHALT-CONTAINING OIL WITH A SOLVENT SELECTED FROM THE GROUP CONSISTING OF N-PROPANOL AND ISOPROPANOL CONTAINING FROM 5 TO 20 VOLUME PERCENT OF NORMAL PARAFFIN HYDROCARBON OF 5 TO 15 CARBON ATOMS PER MOLECULE; (2) MAINTAINING THE VOLUME RATIO OF SOLVENT TO OIL IN STEP (1) IN THE RANGE OF 4 TO 20 AND THE TEMPERATURE IN THE RANGE OF 175 TO 180*F.;
Claim 2
Dependent Claim
115 words
A PROCESS FOR SIMULTANEOUSLY PRODUCING A PAVING GRADE ASPHALT AND AN OIL SUITABLE FOR CATALYTIC CRACKING TO PRODUCE GASOLINE BLENDING STOCKS FROM AN ASPHALT-CONTAINING OIL IN WHICH THE CONCENTRATION OF 100 PENETRATION ASPHALT IS IN THE RANGE OF 2 TO LESS THAN 8 VOLUME PERCENT WHICH COMPRISES THE STEPS OF: (1) CONTACTING SAID ASPHALT-CONTAINING OIL WITH A SOLVENT SELECTED FROM THE GROUP CONSISTING OF N-PROPANOL AND ISOPROPANOL CONTAINING FROM 5 TO 20 VOLUME PERCENT OF NORMAL PARAFFIN HYDROCARBON OF 5 TO 15 CARBON ATOMS PER MOLECULE; (2) MAINTAINING THE VOLUME RATIO OF SOLVENT TO OIL IN STEP (1) IN THE RANGE OF 4 TO 20 AND THE TEMPERATURE IN THE RANGE OF 175 TO 180*F.;
References Cited (Backward Citations)
No citation records indexed.
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 |