Patents by Inventor de Jong Johannes

de Jong Johannes 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 removing the rubbish gathering in the threshold of an elevator car
    Patent number: 5464073
    Abstract: A device for the removal of rubbish gathered in the threshold of an elevator car, the threshold being provided with one or more holes below the bottom guide of the elevator car door. Below the one or more holes there is a rubbish collecting container or bag, in which the rubbish coming through the holes in the threshold is collected.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: November 7, 1995
    Assignee: Kone Oy
    Inventor: de Jong Johannes