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:
Aug. 08, 1989
Filed:
Nov. 13, 1987
Applicant:
Inventors:
Roy E Martin, Lee's Summit, MO (US);
John H Parr, Lee's Summit, MO (US);
C Gray McCullah, Dallas, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62B / ;
U.S. Cl.
CPC ...
12820527 ; 12820612 ; 12820619 ;
Abstract
A porous bag filled with relatively small, loose, oil coated polystyrene beads permits sufficient air intake and adequately prevents smoke inhalation when placed over the nose and mouth while in most smoky atmospheres.