Patents by Inventor Jon E. Petryshyn

Jon E. Petryshyn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4821932
    Abstract: A holder in the form of an upwardly facing cup dimensioned to tightly receive and carry the lower half of a conventional shoe polish can. The holder is equipped with a strap or the like to attach the holder to the using person's thigh so as to leave both of the user's hands free to attend to the polishing of his shoes. The rim of the cup that receives the lower half of the can is notched to accommodate the opener key on the can. In a modified form of the holder, back-to-back cups share a common bottom and the cups are of different diameters for accepting cans of different dimensions.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: April 18, 1989
    Inventor: Jon E. Petryshyn