
The basic patent on a combined assembling, casting and distributing machine granted to Ottmar Mergenthaler on 12 May 1882, expired in 1902 and the Mergenthaler patent on the Schuckers expandable wedge spaceband expired in 1909. Certain other Linotype patents became void soon after 1909.
By 1912 it was legally possible for anyone with sufficient capital to manufacture a machine that would assemble and cast lines of type.