A careful watch must be kept upon Con gress, to see that no extension of patents are carried through by a coup d'etat.v So writes a correspondent to us about the Woodworth Patent. We have no -fears of any such result as long as the present Chairman. Mr. Cartter, is at the head of the Committee on Patents in the House of Representatives. No harm, however, comes of being watchful.
This article was originally published with the title "The Extension of Patents" in Scientific American 8, 22, 173 (February 1853)