Back to results
US 5,352,535 AGranted
Message board
OwnerChing-Fang Suinventor
Life of this patent
Estimating the term…
Abstract
A message board has a surface layer made of a protectively mounted paper or plastic sheet which has a smooth plane adapted to be erasably written thereon with a whiteboard marker. An intermediate mounting layer is overlapped with and connected to the surface layer, and is made of a hard polyvinyl chloride or polyethylene. A base layer is overlapped with and connected to the intermediate mounting layer, and is made of a soft polyvinyl chloride to be attached directly to and removed from a glazy surface repeatedly.
Claims5
A three-layer message board comprising:
- a smooth planar surface layer of a material which can be erasably written on with a whiteboard marker;
- an intermediate mounting layer of hard polyvinyl chloride or polyethylene connected to said surface layer;
- and
- a base layer connected to said intermediate mounting layer, said base layer being of a soft polyvinyl chloride whereby said base layer can be attached directly to and removed from a glazy surface repeatedly.
1 more element
Dependencies are inferred from the claim text.