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:
Aug. 20, 2024
Filed:
Sep. 11, 2019
Nicoventures Trading Limited, London, GB;
Michael Andrew Zawadzki, Clemmons, NC (US);
David Neil McClanahan, Winston-Salem, NC (US);
Nicoventures Trading Limited, London, GB;
Abstract
A method of preparing a whitened tobacco material for use in a smokeless tobacco product, including: (i) extracting a tobacco material with an aqueous solution to provide a tobacco solids material and a tobacco extract; (ii) bleaching the tobacco solids material with a solution comprising a strong base, an oxidizing agent, or a combination thereof to provide a bleached tobacco material; and (iii) drying the bleached tobacco material to provide the whitened tobacco material; wherein the tobacco solids material is not subjected to treatment at an elevated temperature with sulfur-containing reagents, organic solvents, sodium hydroxide, or an acid between the extraction and the bleaching.