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William G. Sheaffer Patents |
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Inventor: Sheaffer; William G.
Address: Tucson, AZ
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4953823 |
Coaster and wipe |
September 4, 1990 |
| A coaster with the attributes of a wipe wherein two layers of absorbent material such as paper are separated by spacers. As the condensation collects on the upper absorbent layer, it sags and creates air pockets preventing the wet glass from sticking to the coaster. Through judicious |
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