US3081258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high octane gasolines
Assignee: Shell USA Inc
•
Filing: 1960-12-02
•
Granted: 1963-03-12
•
Expires: 1980-12-02
Abstract
No abstract record available.
Inventors
- 👤 Jan R J Van Dongen
- 👤 Donald P Plummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:00
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10L; C10L1/00; C10L1/04; C10L1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
IN A PROCESS FOR THE HYDRODESULFURIZATION OF HIGHBOILING SULFUR-BEARING HYDROCARBON OILS WHEREIN GASOLINE BOILING RANGE HYDROCARBONS ARE PRODUCED, THE IMPROVEMENT WHICH COMPRISES CONTACTING A SULFUR-BEARING OIL HAVING AN INITIAL BOILING POINT OF AT LEAST 170* C. AT ELEVATED TEMPERATURES AND PRESSURES WITH HYDROGEN AND WITH A
Claim 2
Dependent Claim
46 words
IN A PROCESS FOR THE HYDRODESULFURIZATION OF HIGHBOILING SULFUR-BEARING HYDROCARBON OILS WHEREIN GASOLINE BOILING RANGE HYDROCARBONS ARE PRODUCED, THE IMPROVEMENT WHICH COMPRISES CONTACTING A SULFUR-BEARING OIL HAVING AN INITIAL BOILING POINT OF AT LEAST 170* C. AT ELEVATED TEMPERATURES AND PRESSURES WITH HYDROGEN AND WITH A
References Cited (Backward Citations)
US2967816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |