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. 01, 1992
Filed:
Aug. 26, 1991
Applicant:
Inventor:
William D Kappele, Loveland, CO (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
106 22 ; 106 20 ;
Abstract
A specific dye set, comprising Acid Yellow 23, Direct Red 227, and Acid Blue 9, yields true, vivid colors on specially coated paper and transparency, and yields true colors on uncoated or 'plain' papers. This dye set, which is intended for 300 dpi thermal ink-jet printers, is a distinct improvement over a prior art dye set.