International Vitamin Corp. v. Winthrop Chemical Co.

On August 22, 1940, International Vitamin Corporation filed its application to register the trade-mark “Blexin” appearing in large block letters over a small circle across which -are the letters “I. V. C.” above “The House of Vitamins” in small handwriting. The latter words were disclaimed. The trade-mark is applied to a Vitamin B Complex preparation.

On October 22, 1941, International Vitamin Corporation assigned and sold to American Home Products Corporation all its right, title and interest in and to certain trade-marks, among which was listed the mark “Blexin.” The assignment was duly…