Tabs on a personal respiratory protection mask
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The dash-dot-dot line immediately adjacent the claimed areas represent the bounds of the claimed design while all other broken lines represent environmental structure and are for illustrative purposes only; the broken lines form no part of the claimed design and the shading is provided to illustrate contour only and is not an indication of texture, gloss, etc.
Claims
The ornamental design for tabs on a personal respiratory protection mask, as shown and described.
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Type: Grant
Filed: Sep 18, 2009
Date of Patent: May 15, 2012
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Nathan A. Abel (Minneapolis, MN), Scott A. Spoo (Deer Park, WI), Dean R. Duffy (Woodbury, MN)
Primary Examiner: Wan Laymon
Attorney: Karl G. Hanson
Application Number: 29/343,742