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. 10, 1992
Filed:
Apr. 12, 1991
Applicant:
Inventors:
Edward B Sanders, Richmond, VA (US);
Sheryl D Baldwin, Richmond, VA (US);
Barbro L Goodman, Colonial Heights, VA (US);
Cynthia W Arterbery, Chesterfield, VA (US);
James L Myracle, Midlothian, VA (US);
Assignee:
Philip Morris Incorporated, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D / ;
U.S. Cl.
CPC ...
131365 ; 131331 ;
Abstract
The ash characteristics of a cigarette paper wrapper are improved by using fine particle size calcium carbonate filler. In addition, increased calcium carbonate filler loading level, increased basis weight, and various combinations of these variables are used to achieve improved ash characteristics.