DC hazardous condition detector
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The broken line showing of structural features is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design.
Claims
The ornamental design for a DC hazardous condition detector, as shown and described.
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Type: Grant
Filed: Dec 1, 2009
Date of Patent: Nov 23, 2010
Assignee: Universal Security Instruments, Inc. (Owings Mill, MD)
Inventor: Eric V. Gonzales (Aurora, IL)
Primary Examiner: Antoine D Davis
Attorney: Cahn & Samuels LLP
Application Number: 29/351,138