Patents by Inventor Don A. Maxfield

Don A. Maxfield 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: 4137577
    Abstract: An article for cleaning a toilet bowl including a plug member for positioning in the drain of a toilet bowl and a flexible tube with one end of the tube carried in the plug member providing a flow path through the plug member. The other end of the tube is adapted for mounting on the bowl above the normal water level, as by a wire bracket which clips over the rim of the bowl. The plug member is preferably made of a water soluble material carrying a cleanser. The upper end of the tube preferably is attached to the rim with a block of water soluble material carrying a cleanser.
    Type: Grant
    Filed: January 10, 1978
    Date of Patent: February 6, 1979
    Inventor: Don A. Maxfield