Education and demonstration – Means for demonstrating apparatus – product – or surface... – Chalkboard or equivalent means having easily erasable surface
Reexamination Certificate
2011-03-08
2011-03-08
Fernstrom, Kurt (Department: 3711)
Education and demonstration
Means for demonstrating apparatus, product, or surface...
Chalkboard or equivalent means having easily erasable surface
C434S408000, C434S429000
Reexamination Certificate
active
07901213
ABSTRACT:
A marker screen assembly includes a housing, a first screen stored within the housing and movable to an extended position, and a second marker screen stored within the housing and movable to an extended position. The second marker screen has a writing surface designed to be repeatably written upon and erased and is configured to overlay at least a portion of the first screen when both the first and second screens are in the extended position.
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ACCO Brands USA LLC
Fernstrom Kurt
Michael & Best & Friedrich LLP
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