Patents by Inventor Maxwell W. Day

Maxwell W. Day 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: D259653
    Type: Grant
    Filed: July 12, 1978
    Date of Patent: June 23, 1981
    Inventor: Maxwell W. Day
  • Patent number: D260922
    Type: Grant
    Filed: July 12, 1978
    Date of Patent: September 22, 1981
    Inventor: Maxwell W. Day