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:
Jun. 09, 2015
Filed:
Jan. 26, 2007
Applicant:
Stephen G. Zimmermann, Midlothian, VA (US);
Inventor:
Stephen G. Zimmermann, Midlothian, VA (US);
Assignee:
Philip Morris USA Inc., Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24B 15/26 (2006.01); A24B 15/24 (2006.01);
U.S. Cl.
CPC ...
A24B 15/24 (2013.01); A24B 15/245 (2013.01);
Abstract
Methods for the selective removal of specific constituents of tobacco extract include contacting an extract with a nitrosamine selective adsorption agent, a metal selective adsorption agent and/or a nitrate selective adsorption agent. Preferred characteristics of such agents are identified.