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:
Mar. 10, 1992
Filed:
Jan. 05, 1990
Applicant:
Inventors:
Frank K St Charles, Fisherville, KY (US);
John H Lauterbach, Louisville, KY (US);
Li-Chung Chao, Louisville, KY (US);
Jiunn-Yann Tang, Louisville, KY (US);
Baran B Chakraborty, Louisville, KY (US);
Andrew McMurtrie, Louisville, KY (US);
Assignee:
Brown & Williamson Tobacco Corporation, Louisville, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24B / ;
U.S. Cl.
CPC ...
131365 ;
Abstract
A dye for coloring cigarette paper a brown color which includes caramel as the brown coloring agent, a plasticizer to prevent the paper from becoming brittle, and water. The dye can further include carmine as a red coloring agent to change the shade and hue of the brown color of the caramel. The dye can further include a burn additive to promote the burning of the dyed paper if needed.