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. 14, 1994
Filed:
Dec. 18, 1992
Applicant:
Inventor:
Lambert Hans, Stockholm, SE;
Assignee:
Gibeck Respiration AB, Uplands Vasby, SE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
12820529 ; 12820113 ; 12820415 ; 55498 ; 55DI / ; 2104931 ;
Abstract
A filtering device for connection to the respiratory tract of a person and comprising a cover (1) enclosing a heat and moisture exchanging material and a bacteria absorbing filter which consists of a folded, air-permeable sheet material. The heat and moisture exchanging material is formed as strips (9) inserted in the pleats of the sheet material (8).