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:
Mar. 11, 1986
Filed:
Apr. 06, 1984
Applicant:
Inventors:
William Pinkerton, Belfast, GB;
Sherman J Hawthorne, Larne, GB;
Assignee:
Gallaher Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D / ;
U.S. Cl.
CPC ...
131339 ; 131336 ; 131361 ;
Abstract
A cigarette with a tobacco rod (5,6) has at its buccal end a filter plug (10) and a hollow tubular core (8) with a cross wall (9) formed with orifices of a certain size and shape. Ventilating air drawn in through perforations (12) in a tipping wrapper (7) and through a porous inner wrapper (11) is mixed with smoke drawn through the tobacco rod and the mixture is sucked through the orifices (13) which promote particular mixing and pressure drop effects.
Pinkerton, William. (1986). Buccal end device for a smoking rod (U.S. Patent No. 4574820). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4574820
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile