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. 15, 2016
Filed:
Dec. 11, 2006
Applicants:
Lixin Xue, Midlothian, VA (US);
Liqun Yu, Midlothian, VA (US);
Joel Schendel, Midlothian, VA (US);
Inventors:
Assignee:
Philip Morris USA Inc., Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 3/06 (2006.01); A24D 3/16 (2006.01); A24D 1/00 (2006.01); A24D 3/00 (2006.01); A24D 3/04 (2006.01);
U.S. Cl.
CPC ...
A24D 3/163 (2013.01); A24D 3/16 (2013.01); A24D 1/00 (2013.01); A24D 1/002 (2013.01); A24D 1/008 (2013.01); A24D 3/00 (2013.01); A24D 3/04 (2013.01); A24D 3/048 (2013.01);
Abstract
Filters and smoking articles include sodium bicarbonate-treated fibers and activated carbon capable of selectively removing one or more selected constituents from mainstream smoke. Methods for making cigarette filters and cigarettes using the sodium bicarbonate-treated fibers and activated carbon, and methods for treating mainstream smoke comprising the sodium bicarbonate-treated fibers and activated carbon are also provided.