Patents by Inventor Paul N. Stavropoulos

Paul N. Stavropoulos 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: 5607186
    Abstract: A survey card apparatus having a front planar member with a plurality of elongated apertures, and a response aperture perpendicular to at least a portion of the plurality of elongated apertures. A middle planar member is secured to the front planar member. The middle planar member has at least one aperture therethrough. A plurality of slide members with indicia responsive to selected questions on the front side and bar code indicia on the back side. The indicia on the front side of the respective slide members is aligned with the response aperture on the front planar member. A rear panel member is secured to the middle planar member. The rear panel member has a bar code indicia aperture in parallel alignment with the response aperture, so that when the indicia is aligned with regard to the response aperture, the response in bar code is aligned with the bar code aperture on the rear planar member.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: March 4, 1997
    Inventors: Michael J. Schroeder, Paul N. Stavropoulos