Patents by Inventor Fred E. Guttormson

Fred E. Guttormson 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: D291780
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: September 8, 1987
    Assignee: C. R. Mfg. Co.
    Inventor: Fred E. Guttormson