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. 25, 1980
Filed:
Sep. 28, 1977
Applicant:
Inventor:
Horst Borowski, Hamburg, DE;
Assignee:
B.A.T. Cigaretten-Fabriken GmbH, Hamburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24B / ;
U.S. Cl.
CPC ...
1312 / ;
Abstract
An improved fibrous filter is disclosed which is useful for removing harmful chemicals from tobacco smoke. This filter is characterized as containing at least one compound selected from the group consisting of ##STR1## wherein R represents a straight-chain, branched or cyclic aliphatic hydrocarbon radical.