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:
Apr. 27, 2021
Filed:
Aug. 07, 2015
Applicant:
R.j. Reynolds Tobacco Company, Winston-Salem, NC (US);
Inventors:
Andries Don Sebastian, Clemmons, NC (US);
Evon L. Crooks, Mocksville, NC (US);
Cortney R. Jackson, Winston-Salem, NC (US);
Assignee:
R.J. Reynolds Tobacco Company, Winston-Salem, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24D 3/06 (2006.01); A24D 3/10 (2006.01); A24D 3/02 (2006.01);
U.S. Cl.
CPC ...
A24D 3/06 (2013.01); A24D 3/0204 (2013.01); A24D 3/068 (2013.01); A24D 3/10 (2013.01);
Abstract
A method and associated system are provided for forming a biodegradable filter material for a filter element of a smoking article, wherein the method involves combining cellulose acetate fibers with regenerated cellulose fibers, drawing the combined cellulose acetate fibers and regenerated cellulose fibers to form drawn combined fibers, and crimping the drawn combined fibers to form a mixed fiber tow. An associated filter material for the filter element of a smoking article is also provided.