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:
Jun. 09, 1987
Filed:
Apr. 28, 1986
Ivano Delprato, Savona, IT;
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
Cyan dye-forming 6-hydroxy-2H-1,4-benzoxazin-3-(4H)-one couplers, preferably cyan dye-forming couplers corresponding to the general formula: ##STR1## wherein R represents hydrogen or R''--X--NH, R' represents hydrogen or a substituted or unsubstituted alkyl group, R' represents hydrogen or R.sup.iv --X--, X represents a member selected from the group consisting of --CO--, --SO.sub.2 --, --OCOCO--, --NHCO--, R'' and R.sup.iv represent a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group and Y and Z, the same or different, represent hydrogen, halogen and a substituted or unsubstituted alkyl or alkoxy group, are described for use in silver halide color photographic processes and elements.