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:
Sep. 13, 1983
Filed:
Dec. 14, 1981
Applicant:
Inventors:
Elbert M Idelson, West Newton, MA (US);
Patrick F King, Needham, MA (US);
Assignee:
Polaroid Corporaton, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C09B / ; C09B / ; G03C / ;
U.S. Cl.
CPC ...
260147 ; 2601 / ; 260149 ; 260150 ; 260151 ; 260141 ; 260162 ; 2604 / ; 2604 / ;
Abstract
Chrome-complexed hexadentate dyes which include an ortho, ortho-dihydroxy azo or azomethine dye moiety, a colorless ligand which is a radical of an iminodiacetic acid and a linkage connecting the ligand to the dye moiety. In one embodiment the dyes include a photographically useful group and are also useful in photographic applications.