Patents by Inventor David Murchison

David Murchison 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).

  • Cartridge case and projectile
    Patent number: 11953302
    Abstract: A cartridge case and projectile combination having a maximum length of 1.6?. The cartridge case to receive a projectile has a rebated rim of a 0.535? diameter, body length from web to shoulder of 0.7003?, a case shoulder angle of 42°, a longitudinal distance between said shoulder and neck of 0.1557?, a case neck length of 0.229?, a mouth. The cartridge case has a total case length of 1.285?. The projectile includes a front section having a length of 0.315? that extends past said cartridge case and a back section from the front section to a base of the projectile that fits inside of the case at the mouth.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: April 9, 2024
    Inventor: David Murchison
  • CARTRIDGE CASE AND PROJECTILE
    Publication number: 20230103234
    Abstract: A cartridge case and projectile combination having a maximum length of 1.6?. The cartridge case to receive a projectile has a rebated rim of a 0.535? diameter, body length from web to shoulder of 0.7003?, a case shoulder angle of 42°, a longitudinal distance between said shoulder and neck of 0.1557?, a case neck length of 0.229?, a mouth. The cartridge case has a total case length of 1.285?. The projectile includes a front section having a length of 0.315? that extends past said cartridge case and a back section from the front section to a base of the projectile that fits inside of the case at the mouth.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Inventor: David Murchison