US3175966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of a crude hydrocarbon oil in several stages to produce refined lower boiling products
Assignee: Cities Service Research and Development Co
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Filing: 1962-09-24
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Granted: 1965-03-30
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Expires: 1982-09-24
Abstract
No abstract record available.
Inventors
- 👤 Warren E Burch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:47
CPC Classifications
C; C10; C10G; C10G47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE PROCESS FOR TREATING HYDROCARBON CRUDE OIL WHICH COMPRISES: (A) FRACTIONATING SAID CRUDE OIL TO PRODUCE A NORMALLY GASEOUS FRACTION, AN INTERMEDIATE NAPHTHA FRACTION, A GAS OIL FRACTION AND A RESIDUAL FRACTION, (B) HYDROCRACKING SAID RESIDUAL FRACTION UNDER SUITABLE HYDROCRACKING CONDITIONS IN THE PRESENCE OF ADDED HYDROGEN AND RECOVERING THEREFROM A NORMALLY GASEOUS FRACTION, A RESIDUAL FRACTION AND GAS OIL FRACTION, (C) HYDROCRACKING SAID GAS OIL FRACTION FROM STEP (B) AND SAID GAS OIL FRACTION FROM STEP (A) UNDER SUITABLE HYDROCRACKING CONDITIONS IN THE PRESENCE OF ADDED HYDROGEN AND RECOVERING THEREFROM A NORMALLY GASEOUS FRACTION, A FUEL OIL FRACTION AND AN INTERMEDIATE NAPHTHA FRACTION, (D) REFORMING THE INTERMEDIATE NAPHTHA FRACTIONS FROM STEPS (A) AND (C) UNDER SUITABLE REFORMING CONDITIONS AND RECOVERING THEREFROM HYDROGEN, A NORMALLY GASEOUS FRACTION AND A REFORMATE FRACTION,
Claim 2
Dependent Claim
131 words
THE PROCESS FOR TREATING HYDROCARBON CRUDE OIL WHICH COMPRISES: (A) FRACTIONATING SAID CRUDE OIL TO PRODUCE A NORMALLY GASEOUS FRACTION, AN INTERMEDIATE NAPHTHA FRACTION, A GAS OIL FRACTION AND A RESIDUAL FRACTION, (B) HYDROCRACKING SAID RESIDUAL FRACTION UNDER SUITABLE HYDROCRACKING CONDITIONS IN THE PRESENCE OF ADDED HYDROGEN AND RECOVERING THEREFROM A NORMALLY GASEOUS FRACTION, A RESIDUAL FRACTION AND GAS OIL FRACTION, (C) HYDROCRACKING SAID GAS OIL FRACTION FROM STEP (B) AND SAID GAS OIL FRACTION FROM STEP (A) UNDER SUITABLE HYDROCRACKING CONDITIONS IN THE PRESENCE OF ADDED HYDROGEN AND RECOVERING THEREFROM A NORMALLY GASEOUS FRACTION, A FUEL OIL FRACTION AND AN INTERMEDIATE NAPHTHA FRACTION, (D) REFORMING THE INTERMEDIATE NAPHTHA FRACTIONS FROM STEPS (A) AND (C) UNDER SUITABLE REFORMING CONDITIONS AND RECOVERING THEREFROM HYDROGEN, A NORMALLY GASEOUS FRACTION AND A REFORMATE FRACTION,
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |