Patents by Inventor Charley F. Matherne

Charley F. Matherne 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).

  • Reusable filter apparatus
    Patent number: 4049555
    Abstract: Apparatus is disclosed comprising a reusable filter insertable in an enclosure having openings therein for the passage of a cleaning fluid through the filter and out of the enclosure. The enclosure may comprise a cylinder into which the filter is inserted.The filter element in one embodiment comprises a resilient filter windable on itself for insertion in the enclosure which may comprise a cylindrical enclosure.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: September 20, 1977
    Assignee: Lawrence Peska Associates, Inc.
    Inventor: Charley F. Matherne