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:
Jul. 18, 2000
Filed:
May. 19, 1998
Werner Schneider, Quickborn, DE;
Adolf Schluter, Eckersdorf-Donndorf, DE;
Erwin Kausch, Bayreuth, DE;
Volker Heemann, Goldronach, DE;
Ursula Kopke, Bayreuth, DE;
Wolfgang Metzner, Hamburg, DE;
Bernd-Henrik Muller, Heinersreuth, DE;
Heiner Ritter, Bremen, DE;
Brown & Williamson Tobacco Corporation, Louisville, KY (US);
Abstract
The invention relates to a coaxial cigarette including a coaxial tobacco rod comprising a rod core, a rod core wrapping, a rod jacket and a rod jacket wrapping and a multi-part ventilated filter wherein the filter comprises a filter wrapping as well as at least two longitudinal segments of which at least one is a coaxial filter segment having a core element, a core element wrapping and a jacket element and wherein the ratio of the resistance to draw of the rod core to the resistance to draw of the rod jacket is greater than unity and preferably in the range of 2 to 4.