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Document Number
US Patent 4340146
Issued Date
July 20, 1982
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Abstract
A disposable coaster for use with a beverage container is characterized by a substrate of moisture absorbent material having a base panel and an upstanding side wall joined to the base panel, thereby forming an open ended shell for receiving the bottom end of the beverage container, with the upstanding side wall being characterized by folded, overlapping side wall segments defining vertically extending pleats. A film deposit of moisture impervious sealing material applied to the exterior surface of the shell strengthens the pleats, improves tear resistance and prevents leakage.
Drawing
Disposable coaster - US Patent 4340146 Drawing
Drawing from US Patent 4340146
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Number of Claims:
1
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Owner
Published
July 20, 1982
Application Number
06/101,487
Filed
December 10, 1979
US Classification
215/394   428/181 D7/624.1
Int'l Classification
A47G   23/032   (20060101)   A47G   23/00   (20060101)  
Attorney/Law Firm
USPTO Field of Search
7/45   248/346.1   362/101   428/64   428/35   428/181   428/192   428/153   215/100.5  
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Description
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