Patents by Inventor Marion M. Robinson

Marion M. Robinson 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).

  • Gun trigger mechanism
    Patent number: 4005540
    Abstract: An improved gun trigger mechanism providing selectively different pull poundage requirements. The mechanism utilizes two different spring structures for effecting selectively the different pull requirements.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: February 1, 1977
    Assignee: Kanematsu-Gosho (U.S.A.), Inc.
    Inventor: Marion M. Robinson
  • Rifle
    Patent number: D253485
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: November 20, 1979
    Assignee: Golden Eagle Firearms, Inc.
    Inventor: Marion M. Robinson