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. 21, 2017
Filed:
May. 30, 2014
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A42B 3/16 (2006.01); A61F 11/14 (2006.01); A42B 3/14 (2006.01); A61F 9/06 (2006.01); A42B 3/22 (2006.01);
U.S. Cl.
CPC ...
A42B 3/16 (2013.01); A42B 3/145 (2013.01); A42B 3/225 (2013.01); A61F 9/06 (2013.01); A61F 11/14 (2013.01);
Abstract
A welding helmetthat has a face shieldthat has a native width NW and that has a lensdisposed in the face shield. A spreader barcan expand the face shieldfrom its native width NW to an increased width IW to allow the welding shieldto easily accommodate earmuffsworn by the welder.