Patents by Inventor Clarence Kopp

Clarence Kopp 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).

  • Loading ramp
    Patent number: 4443905
    Abstract: At least two plates hinged along a confronting pair of edges by hinge members having depending feet which hold the two plates slightly elevated along the hinge and allow the plates to assume relative positions which subtend whatever appropriate angle is necessary for the unhinged ends of the plates to establish contact with a loading dock surface and truck cargo area surface when the two plates are used as a ramp for transferring cargo on dollies or the like between the dock and truck.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: April 24, 1984
    Inventor: Clarence Kopp
  • Label holder for use on a postal sorting box
    Patent number: D283187
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: April 1, 1986
    Inventor: Clarence Kopp