Patents by Inventor Shawn D. Olfman

Shawn D. Olfman 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: 5100149
    Abstract: A three level game board made up of a lowermost level, a middle level, and an uppermost level. The playing area of the lowermost level is made up of four stepped pyramidal shaped component playing areas each of which, when the game board is set up for its intended use, lies entirely outboard of the playing areas of the other two levels a sufficient distance to be adequately observable by Players. The playing area of the middle level is substantially square shaped and centrally located entirely within the four component playing areas of the lowermost level.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: March 31, 1992
    Assignee: Olfman Brothers Incorporated
    Inventors: Shawn D. Olfman, Jerry A. Olfman
  • Patent number: D273599
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: April 24, 1984
    Inventors: Shawn D. Olfman, Jerry A. Olfman
  • Patent number: D273801
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: May 8, 1984
    Inventors: Shawn D. Olfman, Jerry A. Olfman
  • Patent number: D273879
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: May 15, 1984
    Inventors: Shawn D. Olfman, Jerry A. Olfman