Patents by Inventor Lo C. Kai

Lo C. Kai 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).

  • Toy vehicle slot track
    Patent number: 4997187
    Abstract: A track section for a slot track racing game has a double walled box channels formed by alignment projections and receptacles therefore on each of the opposite sides of a track. A pair of hooks prevent accidental disconnection of the track sections responsive to random movements. The hooks have dependent fins which concentrate bending forces to the root ends thereof to preclude random bending under stress conditions. A lap counter gives a signal after a slot track vehicle has made a predetermined number of laps.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: March 5, 1991
    Assignee: Marchon, Inc.
    Inventors: Marvin Smollar, Lo C. Kai, Kwok S. Kit