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US 4,785,835 AGranted
Nail file
OwnerDavid Brayinventor
Life of this patent
Estimating the term…
Abstract
A nail file comprises a core of stiff sheet material and a layer of abrasive material laminated to at least one surface of the sheet material.
Claims11
A nail file comprising:
- (a) a long narrow core of aluminum;
- and
- (b) a layer of abrasive material laminated under heat and pressure to at least one surface of said core by means of a film of heat sensitive adhesive disposed between said abrasive and said core, said heat sensitive adhesive being a random co-polymer of ethylene and acrylic acid.
Dependencies are inferred from the claim text.