Patents by Inventor Matthew Sprenger

Matthew Sprenger 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).

  • Firearm cartridge case
    Patent number: 11879714
    Abstract: A firearm cartridge case includes a cartridge case having a base which defines a cartridge case diameter; and a rebated rim which defines a rim diameter less than the cartridge case diameter, a ratio of the cartridge case diameter to the rim diameter is between 1.03-1.10.
    Type: Grant
    Filed: October 7, 2022
    Date of Patent: January 23, 2024
    Inventor: Matthew Sprenger
  • FIREARM CARTRIDGE CASE
    Publication number: 20230280137
    Abstract: A firearm cartridge case includes a cartridge case having a base which defines a cartridge case diameter; and a rebated rim which defines a rim diameter less than the cartridge case diameter, a ratio of the cartridge case diameter to the rim diameter is between 1.03-1.10.
    Type: Application
    Filed: October 7, 2022
    Publication date: September 7, 2023
    Inventor: Matthew Sprenger