In re Crouch

In this appeal from the decision of the Board of Appeals of the United States Patent Office affirming that of the examiner rejecting all the claims (five in number) of appellant’s application the question involved is one of law not relating to the per se patentability of the claims.

It is unnecessary, therefore, to quote or analyze the claims, but it may be stated that the subject'matter to which the application relates is the electrical treatment of water to reduce the effects of its hardness.

The patent was denied by the respective tribunals of the Patent Office on the sole ground that a…