Patents by Inventor Louis S. Matjasko

Louis S. Matjasko 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).

  • Fire extinguisher charging cylinder guard
    Patent number: D307651
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: May 1, 1990
    Assignee: Dooley Tacklaberry, Inc.
    Inventors: Arthur R. Dooley, Jr., Timothy A. Garrett, Louis S. Matjasko