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:
Nov. 13, 1979
Filed:
Jan. 04, 1977
Applicant:
Inventors:
Teruhisa Sakamoto, Shin-nanyo, JP;
Taketoshi Nagahama, Shin-nanyo, JP;
Shigeo Nakamura, Shin-nanyo, JP;
Keiichi Kihara, Shin-nanyo, JP;
Assignee:
Toyo Soda Manufacturing Co., Ltd., Yamaguchi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
562534 ; 252435 ; 252437 ; 562535 ; 562536 ;
Abstract
Methacrylic acid is produced by the vapor phase oxidation of methacrolein in the presence of a complex oxide catalyst having the formula: