Signal shift device
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Description
In the drawings, the broken line showing of a sign trailer depicts environmental subject matter and forms no part of the claim.
Claims
The ornamental design for signal shift device, as shown and described.
Referenced Cited
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Patent History
Patent number: D652752
Type: Grant
Filed: Apr 14, 2011
Date of Patent: Jan 24, 2012
Assignee: National Signal, Inc. (Fullerton, CA)
Inventors: Mark Fernandez (Fullerton, CA), Kim Kwok (Irvine, CA)
Primary Examiner: Caron D Veynar
Assistant Examiner: George D Kirschbaum
Attorney: Rutan & Tucker, LLP
Application Number: 29/389,627
Type: Grant
Filed: Apr 14, 2011
Date of Patent: Jan 24, 2012
Assignee: National Signal, Inc. (Fullerton, CA)
Inventors: Mark Fernandez (Fullerton, CA), Kim Kwok (Irvine, CA)
Primary Examiner: Caron D Veynar
Assistant Examiner: George D Kirschbaum
Attorney: Rutan & Tucker, LLP
Application Number: 29/389,627
Classifications