Patents by Inventor Ronald Henry Day

Ronald Henry 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: D248810
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: August 8, 1978
    Assignee: Hille International Limited
    Inventor: Ronald Henry Day