Patents by Inventor Allen D. Markus

Allen D. Markus 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).

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    Patent number: D337105
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: July 6, 1993
    Assignee: Eldon Industries Inc.
    Inventors: Allen D. Markus, Thomas H. Naylor