Patents by Inventor Martin Shampaine

Martin Shampaine 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: D305889
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: February 6, 1990
    Assignee: The Time Inc., Magazine Company
    Inventors: John Plunkett, Martin Shampaine
  • Patent number: D319231
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: August 20, 1991
    Assignee: Time, Inc., The Magazine Company
    Inventors: John Plunkett, Martin Shampaine