The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 1996
Filed:
Mar. 29, 1995
Applicant:
Inventors:
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
568-9 ;
Abstract
A process for the preparation of phosphonium salts by the use of chlorides, which is useful in the course of synthesis of olefin compounds by the Wittig reaction, and which comprises reacting a phosphine compound of the general formula
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Fukumoto, Takehiko. (1996). Process for the preparation of phosphonium salts (U.S. Patent No. 5481040). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5481040
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