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:
Sep. 24, 1985
Filed:
Dec. 05, 1983
Daniel V Cantrell, Prospect, KY (US);
Robert R Johnson, Louisville, KY (US);
Brown & Williamson Tobacco Corporation, Louisville, KY (US);
Abstract
A smoking article, such as a cigarette, includes generally cylindrically shaped, hollow tubular section located in coaxial abutment to one end of the tobacco column of the cigarette and a generally cylindrically shaped filter rod located in coaxial abutment with the tubular section. The wall of the tubular section is fabricated of an impermeable material. A plurality of grooves are formed in the periphery of the tubular section extending generally longitudinally thereof and being open to at least one end of the tubular section. Air permeable tipping material circumferentially surrounds the tubular section and the filter rod, and overlaps a portion of the tobacco column adjacent to the tubular section to fasten the tubular section and filter rod to the tobacco column.