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. 12, 1988
Filed:
Aug. 12, 1985
Applicant:
Inventors:
Gus D Keritsis, Richmond, VA (US);
Walter A Nichols, Richmond, VA (US);
Assignee:
Philip Morris Incorporated, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24C / ;
U.S. Cl.
CPC ...
131 94 ; 493 47 ; 493 49 ;
Abstract
A method for applying additives to a cigarette filter rod during its formation is disclosed. The additives are applied in the form of a liquid foam, allowing low application rates with uniform distribution. According to the method, it is not necessary to use large amounts of solvents to apply the additives, thereby avoiding overwetting of the filter material.