Corning Glass Works v. Coe

LUHRING, Justice.

This is an action under R.S. § 4915, 35 U.S.C.A. § 63, in which the plaintiff seeks to have the Court authorize the allowance of certain claims to a refractory product and method of making it.

The specification of the Yoshiki application on which the claims in issue are based reads as follows:

“The usual batch for electro-melting for casting refractories is a mixture of aluminous and siliceous substances containing 1% or over of alkali. As the melt cools, mullite and corundum crystallize out of the melt, with an increase of the alkali content in the still iiquid phase which…