Hearing protector ear cups
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Description
Portions of the drawings shown in broken lines form no part of the claimed design.
Claims
The ornamental design for hearing protector ear cups, as shown and described.
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Patent History
Patent number: D663900
Type: Grant
Filed: Aug 18, 2011
Date of Patent: Jul 17, 2012
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Robert Karlsson (Bredaryd), Oskar Juhlin (Gustavsberg), Martin Birath (Lidingo), August Michael (Enkede), Hans Nystrom (Vallingby)
Primary Examiner: Elizabeth J Oswecki
Attorney: Eric D. Levinson
Application Number: 29/399,751
Type: Grant
Filed: Aug 18, 2011
Date of Patent: Jul 17, 2012
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Robert Karlsson (Bredaryd), Oskar Juhlin (Gustavsberg), Martin Birath (Lidingo), August Michael (Enkede), Hans Nystrom (Vallingby)
Primary Examiner: Elizabeth J Oswecki
Attorney: Eric D. Levinson
Application Number: 29/399,751
Classifications
Current U.S. Class:
Ear (D29/112)