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. 09, 1982
Filed:
Mar. 26, 1981
Applicant:
Inventors:
Tetsuo Takematsu, Utsunomiya, JP;
Masaki Takeuchi, Ohmiya, JP;
Masanori Okada, Niiza, JP;
Hiroshi Sugiyama, Tokyo, JP;
Yasushi Murakami, Tokyo, JP;
Assignee:
Chugai Seiyaku Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; A01N / ;
U.S. Cl.
CPC ...
71120 ; 564 52 ; 2604 / ;
Abstract
There are provided novel urea derivatives of the general formula ##STR1## wherein X, n, A and R are defined in the description; processes for preparing the derivatives and herbicidal composition containing as active ingredient the derivative. The derivatives have highly selective herbicidal activities.