Kelley v. City of New York

ERANK J. COLEMAN, District Judge.

The patent in suit covers an electric traffic-signaling system, and is alleged to be infringed by the New York City system of traffic lights. The defendants deny infringement and allege invalidity of the patent because of prior patents, publications, and uses. It is not necessary to pass on the defense of invalidity, because it is clear that the New York system does not infringe the patent, but it should be noted that the prior art was so close as to prohibit any broad construction of the claims.'

The patent calls for a number of electric signals, either bells…