ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,148, issued on Nov. 18.
"Cartridge primer and method of manufacture" was invented by Howard D. Kent (Waldport, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of assembling a primer for a firearm cartridge including the steps of providing a primer cup including a cup base with a circular sidewall extending perpendicularly upward from a perimeter edge thereof, to a rim. Providing an anvil having an anvil base and pressing the anvil into the primer cup with the anvil base spaced apart from the cup base to form a primer gap therebetween. Providing a slurry including a primer composition and a carrier liquid and introducing a controlled vol...