Patents by Inventor John V. Marcantonio

John V. Marcantonio 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: 6565408
    Abstract: A yo-yo includes a first yo-yo half defining a first starburst, a second yo-yo half defining a second starburst, and an axle fixedly mounted between said yo-yo halves. The yo-yo also includes a roller bearing fixedly attached to the axle, and a spool fixedly attached to the roller bearing, the spool having a circumferential outer rim with a groove therein. A bearing pocket defines an annular radial gap between each yo-yo half and the outer rim, the gap sufficiently small that a string cannot wedge in the gap.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: May 20, 2003
    Assignee: Yomega Corp.
    Inventors: John V. Marcantonio, Dana E. Chicca