Grinding protection plate

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view showing the new design for a grinding protection plate for a welding helmet;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

Claims

The ornamental design for a grinding protection plate, as shown and described.

Referenced Cited
U.S. Patent Documents
1337036 April 1920 Bergmann
3945044 March 23, 1976 McGee
D255283 June 10, 1980 Piche
D340546 October 19, 1993 Kamata
5302815 April 12, 1994 Eggenschwiler
D360058 July 4, 1995 Reede
6161225 December 19, 2000 Arai
D517745 March 21, 2006 Lee et al.
D584008 December 30, 2008 Juhlin
7520630 April 21, 2009 Murphy
D592811 May 19, 2009 Juhlin
D668001 September 25, 2012 Juhlin et al.
D669227 October 16, 2012 Wang
D674150 January 8, 2013 Juhlin et al.
8701212 April 22, 2014 Daniels et al.
9271871 March 1, 2016 Wright
D775427 December 27, 2016 Zhou
D781507 March 14, 2017 Huh
D781508 March 14, 2017 Huh
9596902 March 21, 2017 Daniels et al.
D793007 July 25, 2017 Yang
D819892 June 5, 2018 Lee
Patent History
Patent number: D840606
Type: Grant
Filed: Apr 3, 2018
Date of Patent: Feb 12, 2019
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Martin A. J. M. Berggren (Tällberg), Oskar E. Juhlin (Gustavsberg)
Primary Examiner: Robert A Delehanty
Application Number: 29/642,912
Classifications
Current U.S. Class: Element Or Attachment (D29/122)