Patents by Inventor John M. Shader

John M. Shader 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).

  • Archery
    Patent number: 4685217
    Abstract: To attain accuracy in the sport of archery, reference points are used. These reference points are constant and do not vary. The Inline sight gives the archer an added point of reference that increases accuracy in the horizontal dimension. This invention is unique in that the archer can be any distance from the target and always have an added reference point. The Inline sight uses a vertical line positioned between the archer's eye and the standard pin sight that is attached to the front of the bow to attain this added reference point.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: August 11, 1987
    Inventor: John M. Shader