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.

Date of Patent:
Jun. 18, 1985

Filed:

Jan. 31, 1983
Applicant:
Inventors:

Gerhard Hamprecht, Weinheim, DE;

Juergen Varwig, Heidelberg, DE;

Bruno Wuerzer, Otterstadt, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
71 88 ; 544 92 ; 71 90 ;
Abstract

Novel 4H-3,1-benzoxazine derivatives of the formula ##STR1## where R.sup.1, R.sup.2 and Y have the meanings given in the disclosure, a process for their preparation, and their use for combating unwanted plant growth.


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