Patents by Inventor Dane D. Kato

Dane D. Kato 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).

  • Writing implement with improved cartridge holder
    Patent number: 4317639
    Abstract: The refill cartridge of a writing implement is retained in a hollow tubular assembly having an interior frustroconical portion at one end to receive and retain a tapered split collar portion of a cartridge retaining tip. The tapered split collar has an interior surface which may include at least one interior radial surface which along with friction between the collar interior surface and the refill cartridge locks the refill in proper position when stressed inwardly by insertion of the tapered split collar in the frustroconical portion of the tubular barrel.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: March 2, 1982
    Inventor: Dane D. Kato