Hinge for a welding helmet window
Latest 3M Innovative Properties Company Patents:
Description
FIG. 1 is a front perspective view of a hinge for a welding helmet window showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a left side view, the right side view being a mirror image thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a bottom view thereof.
The detail shown in the broken lines form no part of the claimed design.
Claims
The ornamental design for a hinge for a welding helmet window, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
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- Product literature for Racal Health & Safety Powered Respirators.
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- Picture of Welding Shield, Air Visor K Series, by Willson.
Patent History
Patent number: D523728
Type: Grant
Filed: Nov 12, 2004
Date of Patent: Jun 27, 2006
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Peter D. Lee (Hartlepool), Desmond T. Curran (Durham), Daniel Martin (Whalton)
Primary Examiner: Ruth McInroy
Attorney: Karl G. Hanson
Application Number: 29/217,153
Type: Grant
Filed: Nov 12, 2004
Date of Patent: Jun 27, 2006
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Peter D. Lee (Hartlepool), Desmond T. Curran (Durham), Daniel Martin (Whalton)
Primary Examiner: Ruth McInroy
Attorney: Karl G. Hanson
Application Number: 29/217,153
Classifications
Current U.S. Class:
D8/323