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:
Nov. 03, 2020
Filed:
Apr. 24, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Kristina M. Magnusson, Djurmo, SE;
Britton G. Billinglsey, St. Paul, MN (US);
Christopher M. Brown, Cottage Grove, MN (US);
Timothy L. Wong, St. Paul, MN (US);
Kenneth Jarefors, Borlänge, SE;
John M. Kruse, Minneapolis, MN (US);
Jon A. Kirschhoffer, Stillwater, MN (US);
John M. Pilgrim, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A welding protector () has a curved eye protection shield () with an electrically switchable light filter. The welding protector further has a magnifying cover () for arrangement on an eye facing inner side of the eye protection shield. The magnifying cover is pre-shaped based on a curve that extends equidistant to the curve the eye protection shield is based on. Further, the magnifying cover has two optical lenses () which in combination only partially cover the eye protection shield.