Patents by Inventor Malcolm S. Achtman

Malcolm S. Achtman 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).

  • Photographic printing device
    Patent number: 4448520
    Abstract: A device for making both photographic proof sheets and enlargements includes a flat base plate with a low rectangular fence defining an area for accommodating a sheet of photographic paper, template carriers hingedly connected to the base plate and a variety of glassless templates which are slidable into and out of the carriers for making photographic proof sheets without the use of a pressure plate, masking a variety of areas of photographic paper while providing a light-tight seal when closed upon the base plate and holding photographic paper flat for the printing of enlargements.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: May 15, 1984
    Inventors: Myron B. Achtman, Malcolm S. Achtman