Patents by Inventor Michael H. Parik

Michael H. Parik 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).

  • Receptacle for negative carriers
    Patent number: 4334768
    Abstract: A flat receptacle to be mounted on a photographic enlarger to receive negative carriers. The receptacle has openings in the top and bottom walls to enable passage of light and a slot in one side wall enables insertion of a negative carrier. Means, such as holes in the bottom wall, interlock with complementary pins or the like on the bellows. The light source housing is lowered to clamp the receptacle in place for extended use, and the negatives may be inserted in the slotted side wall without raising and lowering the lamp house.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: June 15, 1982
    Assignee: Professional Photo Products, Inc.
    Inventor: Michael H. Parik