Patent US2334491A successfully refreshed from Google Patents.
Patent US2981675A successfully refreshed from Google Patents.
US2981675A
Expired / Lapsed
US
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Subsequent treatment of a naphtha reformate to obtain a high octane gasoline
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-12-23
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Granted: 1961-04-25
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Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Charles E Hemminger
- 👤 Donald D Maclaren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:05
CPC Classifications
C; C10; C10G; C10G51/00; C10G51/02; C10L; C10L1/00; C10L1/04; C10L1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE PROCESS FOR PRODUCING FORM A WIDE BOILING NAPHTHA AN EXTREMELY HIGH OCTANE GASOLINE WHICH COMPRISES THE STEPS OF HYDROFROMING THE NAPHTHA FEED AT 850* TO 1050 F., PASSING HYDROFORMATE TO DISTILLATION, SEPARATING OVERHEARD A CUT BOILING BELOW ABOUT 165*F., CONTAINING C6 PARAFFINS LOW IN OCTANE NUMBER, SEPARATING AS BOTTOMS A CUT BOILING ABOVE ABOUT 300* F., PASSING OVERHEAD AND BOTTOMS TO GASOLINE BLENDING, PASSING THE INTERMEDIATE CUT BOILING IN THE RANGE OF 165* TO 300* F. TO AROMATICS SEPARATION, SEPARATING AROMATICS FROM SAID INTERMEDIATE CUT, PASSING NON-AROMATICS MATERIAL FROM SAID INTERMEDIATE CUT
Claim 2
Dependent Claim
93 words
THE PROCESS FOR PRODUCING FORM A WIDE BOILING NAPHTHA AN EXTREMELY HIGH OCTANE GASOLINE WHICH COMPRISES THE STEPS OF HYDROFROMING THE NAPHTHA FEED AT 850* TO 1050 F., PASSING HYDROFORMATE TO DISTILLATION, SEPARATING OVERHEARD A CUT BOILING BELOW ABOUT 165*F., CONTAINING C6 PARAFFINS LOW IN OCTANE NUMBER, SEPARATING AS BOTTOMS A CUT BOILING ABOVE ABOUT 300* F., PASSING OVERHEAD AND BOTTOMS TO GASOLINE BLENDING, PASSING THE INTERMEDIATE CUT BOILING IN THE RANGE OF 165* TO 300* F. TO AROMATICS SEPARATION, SEPARATING AROMATICS FROM SAID INTERMEDIATE CUT, PASSING NON-AROMATICS MATERIAL FROM SAID INTERMEDIATE CUT
References Cited (Backward Citations)
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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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |