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. 16, 2022
Filed:
Jul. 24, 2020
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Kristina M. Magnusson, Djurmo, SE;
Kenneth Jarefors, Borlänge, SE;
Britton G. Billingsley, St. Paul, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/28 (2006.01); A61F 9/06 (2006.01); G02B 5/20 (2006.01); G02B 1/11 (2015.01); A61F 9/04 (2006.01);
U.S. Cl.
CPC ...
A61F 9/062 (2013.01); A61F 9/04 (2013.01); A61F 9/061 (2013.01); A61F 9/067 (2013.01); G02B 1/11 (2013.01); G02B 5/20 (2013.01);
Abstract
Protective headgear with a curved switchable shutter and curved front and rear cover plates and including at least two antireflective layers.