Patents by Inventor Matthew J. Hrebar

Matthew J. Hrebar 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: 3961423
    Abstract: This invention is a secondary sighting system to supplement a primary telescopic sight on a rifle. It consists of a pair of sights, one front and one rear, which are off-set to the side of the rifle bore, in a position which allows their instant use, should the primary telescopic sight become inoperable because of internal fogging, snow or rain covered lenses, target moving fast in thick brush, or target being too close to permit proper vision and sighting with scope magnification.The front sight is a bead type, mounted on a support bar extending to the side from the gun barrel. The rear sight is an open notch type or a peep aperture, or both at one time, mounted on the side of the gun breech. This pair of sights permits a second line of sight aside from the telescope line of sight, parallel to the rifle bore.The front sight bead support bar is approximately one inch long.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: June 8, 1976
    Inventor: Matthew J. Hrebar