The Commonwealth Engineering Company of Ohio and Carl Berger v. David L. Ladd, Commissioner of Patents

PER CURIAM. This appeal from the denial of a patent application is wholly without merit. The trial judge, in a de novo proceeding, patiently afforded appellants every opportunity to develop their case. But they failed to show that their frozen blood thawing process would produce the result claimed or be otherwise useful. Accordingly, we affirm on the opinion of the District Court. Commonwealth Engineering Co. v. Ladd, D. D.C., 199 F.Supp. 51. Affirmed.