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:
Oct. 16, 2001
Filed:
Oct. 14, 1992
Applicant:
Inventors:
Paul Francis Clarke, Tyne & Wear, GB;
John Charlton, Tyne & Wear, GB;
Assignee:
Cigarette Components Limited, Stoke Poges, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 1/02 ; A24B 1/04 ; D21F 1/100 ;
U.S. Cl.
CPC ...
A24D 1/02 ; A24B 1/04 ; D21F 1/100 ;
Abstract
The present invention provides a tobacco smoke filter or filter element having a longitudinally extending core (,) and a wrapper (,) engaged around the core (,), the wrapper (,) having particulate additive (,) adhered to one or more portion(s) of the radially inner face thereof with said wrapper (,) being free of additive around its circumference at one or both ends of the core.