Patents by Inventor Michael D. Custer

Michael D. Custer 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).

  • Pizza cutter
    Patent number: 4250618
    Abstract: A pizza cutter wherein the plunger is mounted for vertical reciprocation within a guard sleeve by an open spider fixed to the sleeve to expose a cutter mounted on the plunger below the spider for cleaning and visual observation during use. The cutter includes a plurality of radially extending blades detachably mounted on the plunger in an arrangement such that the sleeve, except when removed from the plunger, prevents detachment of the blades.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: February 17, 1981
    Inventors: Michael D. Custer, Gene L. Rorabaugh