Patents by Inventor Johannes Kristoffer Jantzen, Jr.

Johannes Kristoffer Jantzen, Jr. 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).

  • Platen for strip-up microfiche
    Patent number: 3974582
    Abstract: A platen for a strip-up microfiche is equipped with a plurality of pin holders, half of which are fixed in position on one edge of the platen frame and the other half of which are movable seriatim within the opposite edge of the frame to grasp or release the edge of the microfiche which is not connected to the fixed pin holders.
    Type: Grant
    Filed: January 24, 1975
    Date of Patent: August 17, 1976
    Assignee: Addressograph Multigraph Corporation
    Inventor: Johannes Kristoffer Jantzen, Jr.