Patents by Inventor Bruce R. Lamberty

Bruce R. Lamberty 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).

  • Match performance .22 caliber cartridge
    Patent number: 5490463
    Abstract: A match performance 0.22 caliber cartridge having improved accuracy provided as a result of being manufactured with an improved base wall construction, and a thinner, less dense, more uniform and more effectively located lubricant coating on the bullet as compared to the 0.22 caliber cartridges utilized heretofore in match competition; and as a result of a lubricant groove which is located most advantageously and is manufactured with an optimum depth.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: February 13, 1996
    Assignee: Federal-Hoffman, Inc.
    Inventors: Bruce R. Lamberty, Shawn F. Callahan, Daniel N. Johnson