Patents by Inventor David G. Lewandowski

David G. Lewandowski 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: 5044020
    Abstract: A urinal provided for the convenience and training of juvenile boys in accordance with this invention requires no plumbing, and comprises a support means having front and rear surfaces. The rear surface is adapted for attachment to a vertical surface, and the front surface has a receptacle-receiving lower portion. A dish shaped urine-receiving receptacle is utilized, with its lower portion having a configuration closely complementary to the lower portion of the support means. The receptacle has a full height rear wall and a front wall of abbreviated height, with the upper portions of the wall portions terminating in a generally oval front opening. The receptacle is insertable at an angle to the vertical into the lower portion of the support means, and likewise is able to be withdrawn for emptying by lifting upwardly at substantially the same angle to the vertical.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: September 3, 1991
    Inventors: David G. Lewandowski, Edward J. Guard