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. 21, 2000
Filed:
Feb. 03, 1999
Applicant:
Inventors:
Yichun Wang, Canton, MA (US);
Russell E Hopson, Jamaica Plain, MA (US);
Assignee:
The Gillette Company, Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ;
U.S. Cl.
CPC ...
106 3132 ; 106 3158 ;
Abstract
Solvent-based pen inks are provided. The inks include an acid dye and a solvent system that includes an oxa acid solvent, the oxa acid solvent functioning as the primary solvent for the acid dye. Preferred inks are eradicable, and include an acid dye that decolorizes if contacted with a decolorizing compound.