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. 02, 1985
Filed:
Feb. 22, 1984
Walter A Nichols, Richmond, VA (US);
Reginald W Newsome, Richmond, VA (US);
Willard A Geiszler, Jr, Richmond, VA (US);
Philip Morris Incorporated, New York, NY (US);
Abstract
A variable dilution filter cigarette is provided which includes a substantially cylindrical tobacco rod, an axially aligned, substantially cylindrical filter plug wrapped in a substantially air-permeable plug wrap, and a substantially air-permeable first layer of tipping paper which joins the filter plug to the tobacco rod. Circumscribing the first layer of tipping paper is a second layer of substantially air-impermeable tipping paper. The second layer has a circumferentially extending row of closely spaced perforations intermediate its two ends which divides it into a mouth-end sleeve attached to the first layer at the mouth end of the cigarette and a second rod-end sleeve detachable from the mouth-end sleeve.