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. 23, 1993
Filed:
Apr. 12, 1991
Applicant:
Inventors:
Sheryl D Baldwin, Richmond, VA (US);
Rowland W Dwyer, Glen Allen, VA (US);
Deborah J Newman, Prince George, VA (US);
Barton Floyd, Chester, VA (US);
Robert M Rogers, Richmond, VA (US);
Edward B Sanders, Richmond, VA (US);
Barbro L Goodman, Colonial Heights, VA (US);
Assignee:
Philip Morris Incorporated, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D / ;
U.S. Cl.
CPC ...
131365 ; 131331 ; 162139 ;
Abstract
A paper wrapper for a cigarette is prepared using fine particle size calcium carbonate as the mineral filler for the purpose of burn rate, puff count and tar delivery control.