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:
Dec. 01, 2009
Filed:
Apr. 20, 2005
Fiorenzo Draghetti, Medicina, IT;
Ivan Eusepi, Castelmaggiore, IT;
Armando Turrini, San Giovanni in Persiceto, IT;
Vittorio Sgrignuoli, Bologna, IT;
Leonardo Balletti, San Lazzario di Savena, IT;
Fiorenzo Draghetti, Medicina, IT;
Ivan Eusepi, Castelmaggiore, IT;
Armando Turrini, San Giovanni in Persiceto, IT;
Vittorio Sgrignuoli, Bologna, IT;
Leonardo Balletti, San Lazzario di Savena, IT;
G.D. Societa' per Azioni, Bologna, IT;
Abstract
A filter for a cigarette has an organic filtering portion defined by granules or fibres of active carbon and housed inside a cylindrical shell of plastic material; the shell is located between a portion of cellulose acetate, which is engaged orally by a user, and a cigarette portion, and has a bottom, contacting the portion of cellulose acetate and hermetically supporting a particulate trap for retaining fine particulate, and an end contacting the cigarette portion and closed by a plug of cellulose acetate.