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:
Jan. 09, 1979
Filed:
May. 13, 1977
Applicant:
Inventors:
Gunter A Kohler, Grant Township, Washington County, MN (US);
Leon W Anders, Woodbury, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
A62B / ; A62B / ;
U.S. Cl.
CPC ...
1281466 ; 1281426 ; 252463 ;
Abstract
A complex granular material comprising manganese oxide-activated alumina is disclosed. The resulting material can be used in respirators to reduce the sulfur dioxide and HCl intake of the ambient atmosphere.