Patents by Inventor Cyril G. Shireman

Cyril G. Shireman 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: 4309879
    Abstract: A colored disc is positioned in a bezel beneath a clear, plastic simulated gem for imparting color to the gem; the bezel may be affixed to a band for use as a finger ring and a plurality of discs of different colors may be furnished with the ring so a child user may make her own simulated birthstone.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: January 12, 1982
    Assignee: Mattel, Inc.
    Inventors: Bonita M. Gretz, J. Stephen Lewis, Cyril G. Shireman