Patents by Inventor Mary L. Wijas

Mary L. Wijas 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: D312569
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: December 4, 1990
    Inventor: Mary L. Wijas