Patents by Inventor Thomas J Perkowski

Thomas J Perkowski 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).

  • Patent number: 4863026
    Abstract: A storage case for an information recording device and an accompanying program including printed or otherwise recorded graphical subject matter, such as a printed program booklet or optically transparent film structure. The storage case comprises an enclosing case for enclosing and storing the information recording device and the program substantially therewithin. The enclosing case has at least one optically transparent panel with a Fresnel lens zone structure formed therein. The enclosing case provides for the positioning of the graphical subject matter of the program, a range of distances from the optically transparent panel and is intended for the viewing of the graphical subject matter through the optically transparent panel, whereby the graphical subject matter is magnified when viewed through the Fresnel lens zone structure formed in the optically transparent panel.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: September 5, 1989
    Inventor: Thomas J. Perkowski