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
Reexamination Certificate
active
07901214
ABSTRACT:
A drawing system including a portable storage housing; a drawing surface, moveably coupled to the portable storage housing by a biasing subsystem, the drawing surface including a storage mode and a deployed mode wherein the storage mode provides the drawing surface inside the housing and inaccessible for receipt of content and wherein the deployed mode extends the drawing surface outside of the housing and accessible for receipt of content; wherein transition of the drawing surface from the storage mode to the deployed mode activates the biasing subsystem and wherein the biasing subsystem automatically transitions the drawing surface from the deployed mode to the storage mode when operated by a user.
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Liebowitz Michael J.
Neal Phillip H.
Fernstrom Kurt
Woods Michael E.
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