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:
Jul. 07, 1992
Filed:
Jul. 27, 1990
Takahiro Haga, Kusatsu, JP;
Yasuhiro Tsujii, Kusatsu, JP;
Tatsuo Isogai, Yokkaichi, JP;
Shigeo Murai, Kusatsu, JP;
Hisayoshi Jonishi, Kusatsu, JP;
Tokiya Kimura, Kusatsu, JP;
Hiroshi Sasaki, Kusatsu, JP;
Takao Awazu, Kusatsu, JP;
Toshihiro Tanaka, Kusatsu, JP;
Ishihara Sangyo Kaisha Ltd., Osaka, JP;
Abstract
An aminocarbonyl-substituted pyridinesulfinic acid intermediate for production of an herbicide having formula (V): ##STR1## wherein R.sub.3 and R.sub.4 are selected from the group consisting of hydrogen and alkyl groups, or a salt thereof. The aminocarbonyl-substituted pyridinesulfinic acid or salt thereof is useful as the precursor of aminosulfonyl-substituted pyridinecarbonic acid amide, which in turn is useful as the starting material for agricultural chemicals, medicine, etc.