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US 4,890,872 AGranted
Flat paper sheet item for distributing a thin layer of material
AssigneeWebcraft Technologies, Inc.
InventorsMichael A. Parrotta, Frederick Grainger, Donald W. Schoenleber
Life of this patent
Estimating the term…
Abstract
A relatively flat packet for distributing thin layers of material, which provide a substantial recess so as to limit the possibility of contact with surfaces that could impair the integrity of the layer of material enclosed in the packet item from smearing and abrasion.
Claims18
A flat paper-sheet item containing a thin removable layer of a given material, comprising:
- (a) a paper base panel with an upper face having at least one material-containing section with a smooth and impervious surface,
- (b) a relatively thin uniform cohesive layer of spreadable material which is disposed on the material-containing section from which it is readily removable upon application of light sliding contact by another surface,
- (c) a paper spacer piece which is integrally connected to the base panel and extends adjacent and along at least a portion of the periphery of each material-containing section to limit contact of other surfaces with the surface of the layer of spreadable material,
- (d) a solid plastic foam spacer layer disposed between the base panel and the spacer piece immediately adjacent to the material-containing section for providing additional spacing between the engaging surface of the spacer piece and the upper surface of the base panel.
1 more element
Dependencies are inferred from the claim text.