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US3661918A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for the preparation of bicyclic amines

Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1968-10-17
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Granted: 1972-05-09
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Expires: 1988-10-17
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Abstract

Abstract SUBSTITUTED BICYCLIC AMINE COMPOUNDS SUCH AS SUBSTITUTED 1-AZA BICYCLO (3,3,1)NONANES ARE SYNTHESIZED THROUGH THE CATALYTICALLY PROMOTED HYDROGENATION OF TRIAMINO COMPOUNDS, KETODIAMINO COMPOUNDS, TRINITRILE COMPOUNDS AND KETO-DINITRILE COMPOUNDS. THE STARTING TRINITRILE AND KETO-DINITRILE COMPOUNDS ARE DESIRABLY PRODUCED BY CYANOETHYLATING EITHER A KETONE OR A MONONITRILE COMPOUND. THE TRIAMINO AND KETO-DIAMINO MATERIALS ARE OBTAINED BY HYDROGENATION OF THE NITRILE COMPOUNDS. THE SUBSTITUTED BICYCLIC AMINE COMPOSITIONS ARE USEFUL AS AGRICULTURAL CHEMICALS AND AS ADDITIVES OR ADDITIVE PRECURSORS FOR HYDROCARBON COMPOSITIONS RANGING FROM GASOLINE FRACTIONS THROUGH MIDDLE DISTILLATE FUELS AND LUBRICATING OILS.

Inventors

  • 👤 Constantine J Bouboulis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 09:59
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/08; C07C; C07C255/00; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/18; C07D211/26; C07D211/68; C07D211/70

Claims Analysis

Total Claims: 0
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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) 1975-05-09 1975-11-08 1976-05-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-05-09 1979-11-08 1980-05-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-05-09 1983-11-08 1984-05-09 $7700.00 Window Closed / Lapsed

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