Patents by Inventor Aaro Heinonen

Aaro Heinonen 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).

  • Device for cleaning up floors
    Patent number: 4712268
    Abstract: A device for sweeping floors or the like, which device comprises a stick attached to a frame-part which has been equipped with a detachable cleaning cloth for said sweeping. In addition the frame-part includes at least two attachment spikes for attaching the cleaning cloth to the cleaning device by punching the cloth to the spikes.
    Type: Grant
    Filed: April 22, 1986
    Date of Patent: December 15, 1987
    Inventor: Aaro Heinonen