Spaeth v. Gibson

This is a bill in equity to restrain an alleged infringement of reissued letters patent which were granted on February 18, 1879, to the plaintiff, as assignee of Charles T. Day, for an improved skate commonly known as “The American Club Skate.” The original patent was issued to said Day, as inventor, on July 11, 1871.

The invention is described in the specification of the reissue as follows :

“This invention consists in the combination in a skate of movable clamps for grasping the sole, and longitudinally-sliding clamps for grasping the heel at the back part thereof, a stationary spur or…