Patents by Inventor John M. Bigley

John M. Bigley 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).

  • Magazine for a firearm
    Patent number: 8225541
    Abstract: A magazine for a firearm is provided. The magazine includes a magazine box, a base removably coupled to the magazine box and a follower disposed in the magazine box. A spring is coupled to said follower to bias ammunition cartridges towards a firearm receiver. The base includes at least one opening sized to receive an arm on said follower when the magazine is loaded with ammunition cartridges. The distance between the bottom of the follower and top of the base may be arranged to be less than the diameter of an ammunition cartridge when the magazine contains a predetermined number of rounds.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: July 24, 2012
    Assignee: Okay Industries, Inc.
    Inventors: John M. Bigley, Shawn H. Russell
  • MAGAZINE FOR A FIREARM
    Publication number: 20110167694
    Abstract: A magazine for a firearm is provided. The magazine includes a magazine box, a base removably coupled to the magazine box and a follower disposed in the magazine box. A spring is coupled to said follower to bias ammunition cartridges towards a firearm receiver. The base includes at least one opening sized to receive an arm on said follower when the magazine is loaded with ammunition cartridges. The distance between the bottom of the follower and top of the base may be arranged to be less than the diameter of an ammunition cartridge when the magazine contains a predetermined number of rounds.
    Type: Application
    Filed: January 12, 2010
    Publication date: July 14, 2011
    Applicant: OKAY INDUSTRIES, INC.
    Inventors: John M. Bigley, Shawn H. Russell