Oliver Wendell Holmes, Jr., Rumford Chemical Works v. Hygienic Chemical Company of New Jersey…
“ It did not appear that the defendants made or sold baking powders as such, but the New Jersey company did make acid phosphates for baking powders and other purposes, and the New York company sold the great part of its products. The plaintiff contended that this acid phosphate had the characteristics described in its patent, and was made and sold for use in baking powders, and that the manufacture and sale were an infringement of its rights. ”
