Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 14, 2009
Patent Application Number
11493864
Date Filed
July 25, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A down marker for use in a football game includes a vertical support and a display panel that extends from the vertical support. This display panel carries an array of solid state lighting devices configured to optically display a down number. The array of solid state lighting devices is selectively controlled by a controller that is carried by the down marker, in response to an external input.
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