Patents by Inventor Harold Hasselbusch

Harold Hasselbusch 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: 4837937
    Abstract: A rear gun sight unit including a head having a U-slot across which extends a screw provided with a notch for sighting a target, the screw being adjustable to carry the notch to the right or left of normal center for sighting under adverse wind conditions, the head being vertically adjustable relative to a supporting base to elevate the notch for sighting a distant target, and the slot having sidewalls and shoulders to the right and left of center adapted for quick sighting of the gun under various conditions of wind and distance at a momentarily movable target.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: June 13, 1989
    Inventor: Harold Hasselbusch
  • Patent number: D362896
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: October 3, 1995
    Inventor: Harold Hasselbusch
  • Patent number: D375778
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: November 19, 1996
    Inventor: Harold Hasselbusch
  • Patent number: D382625
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: August 19, 1997
    Inventor: Harold Hasselbusch
  • Patent number: D415009
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: October 12, 1999
    Inventor: Harold Hasselbusch