Patents by Inventor Michael C. Blum

Michael C. Blum 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: D250621
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: December 26, 1978
    Assignee: Sunday Sunglass Corp.
    Inventor: Michael C. Blum