Patents by Inventor William L. Effinger

William L. Effinger 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: D248962
    Type: Grant
    Filed: September 10, 1975
    Date of Patent: August 15, 1978
    Assignee: Rolodex Corporation
    Inventors: Martin Glaubinger, William L. Effinger