Patents by Inventor Philip Karsted

Philip Karsted 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).

  • Photograph and negative holder
    Patent number: 3940778
    Abstract: A photograph and negative holder providing for display of the photograph and negative in back to back relationship in individual transparent envelopes and including a hinge flap for securing the photographs and a writing surface on one of the surfaces of the envelope.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: February 24, 1976
    Assignee: Lawrence Peska Associates, Inc.
    Inventors: Jules M. Craig, Philip Karsted