Patents by Inventor David Francis Jeffers

David Francis Jeffers 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).

  • Projectile and munition including projectile
    Patent number: 8671839
    Abstract: A projectile (and munition including the projectile) and a method of assembling the same, includes a body having a cavity, a propellant disposed in the cavity and a base including an ignition flash column extending into the cavity containing the propellant and a nozzle formed so as to be openable and closeable.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: March 18, 2014
    Inventors: Joseph M. Bunczk, David Francis Jeffers, Timothy A. Jeffers
  • Projectile and munition including projectile
    Publication number: 20130112100
    Abstract: A projectile (and munition including the projectile) and a method of assembling the same, includes a body having a cavity, a propellant disposed in the cavity and a base including an ignition flash column extending into the cavity containing the propellant and a nozzle formed so as to be openable and closeable.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 9, 2013
    Inventors: Joseph M. Bunczk, David Francis Jeffers, Timothy A. Jeffers