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:
Jun. 13, 1995
Filed:
Feb. 24, 1993
Applicant:
Inventors:
Edgar Mentzel, Quickborn, DE;
Henning Seidel, Mechtersen, DE;
Wolfgang Wildenau, Bargfeld-Stegen, DE;
Assignee:
H.F. & Ph.F. Reemtsma GmbH & Co., Hamburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24D / ; A24D / ;
U.S. Cl.
CPC ...
131344 ; 131342 ;
Abstract
The invention relates to a ventilated filter cigarette having a filter with three chambers, including a middle chamber containing an adsorbent. The strand-side chamber next to the middle chamber achieves a high pressure drop and a low tar retention by means of a smoke-permeable flow passage, such as a core made from smoke-permeable cellulose acetate fibers, that is enclosed by a casing made from virtually smoke-impermeable cellulose acetate fibers.
Quick Actions:
Mentzel, Edgar. (1995). Ventilated filter cigarette (U.S. Patent No. 5423336). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5423336
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile