Patents by Inventor Ervin Kotche

Ervin Kotche 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).

  • Cleaning pad
    Patent number: 4027350
    Abstract: A buffing and cleaning pad includes a layer of steel wool which has been impregnated with a solution of crude drying oil and essence of lemon. A layer of dust cloth can be bonded to the steel wool layer by an intermediate polyethylene layer having a layer of paper mechanical bonded to each of its surfaces.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: June 7, 1977
    Assignee: Ervin H. Kotche
    Inventor: Ervin Kotche