Generic “marks” are common, every-day terms. These terms include apple, computer, mouse, desk, chair, pencil. Trademarks, however, can become generic. Bayer Co. v. United Drug Co., 272 F. 505 (S.D.N.Y. 1921) “The crux of this controversy, however, lies not in the use of the word to these buyers, but to the general consuming public, composed of all sorts of buyers from those somewhat acquainted with pharmaceutical terms to those who knew nothing of them.”