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. 15, 1988
Filed:
Dec. 29, 1986
Applicant:
Inventors:
Andrea Leone-Bay, Ridgefield, CT (US);
Elliott Bay, Ridgefield, CT (US);
Peter E Timony, Valley Cottage, NY (US);
Assignee:
Stauffer Chemical Company, Westport, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549246 ;
Abstract
A process for selectively substituting an aromatic nitro group of a nitrophthalic anhydride with a halo group which comprises contacting the nitroaromatic-containing compound with a phosphorus halide of formula: