Patents by Inventor Karen L. Usab

Karen L. Usab 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: D277674
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: February 19, 1985
    Assignee: Wang Laboratories, Inc.
    Inventors: Karen L. Usab, Douglas C. Dayton