US2587987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective hydrodesulfurization process
Assignee: Gulf Oil Corp
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Filing: 1949-05-10
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Granted: 1952-03-04
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Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 Leslie U Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:09
CPC Classifications
C; C10; C10G; C10G65/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A SELECTIVE HYDRODESULFURIZATION PROCESS WHICH COMPRISES REMOVING SULFUR FROM PETROLEUM HYDROCARBONS FOR FRACTIONATING A PETROLEUM HYDROCARBON CHARGE STOCK INTO A PLURALITY OF FRACTIONS, CONTACTING A HIGH BOILING FRACTION WITH A HYDROGENATION CATALYST IN THE PRESENCE OF A HYDROGEN-CONTAINING GAS, COMBINING A LOWER BOILING FRACTION WITH THE MIXTURE OF SAID HIGH BOILING FRACTION AND HYDROGEN-CONTAINING GAS, HEATING THIS MIXTURE TO AN INCREMENTALLY HIGHER TEMPERATURE AND CONTACTING THIS HEATED MIXTURE WITH A HYDROGENATION CATALYST.
Claim 2
Dependent Claim
72 words
A SELECTIVE HYDRODESULFURIZATION PROCESS WHICH COMPRISES REMOVING SULFUR FROM PETROLEUM HYDROCARBONS FOR FRACTIONATING A PETROLEUM HYDROCARBON CHARGE STOCK INTO A PLURALITY OF FRACTIONS, CONTACTING A HIGH BOILING FRACTION WITH A HYDROGENATION CATALYST IN THE PRESENCE OF A HYDROGEN-CONTAINING GAS, COMBINING A LOWER BOILING FRACTION WITH THE MIXTURE OF SAID HIGH BOILING FRACTION AND HYDROGEN-CONTAINING GAS, HEATING THIS MIXTURE TO AN INCREMENTALLY HIGHER TEMPERATURE AND CONTACTING THIS HEATED MIXTURE WITH A HYDROGENATION CATALYST.
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) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |