From: utzoo!decvax!aps Newsgroups: net.unix-wizards Title: Setuid Patent Article-I.D.: decvax.464 Posted: Tue Apr 12 14:07:49 1983 Received: Wed Apr 13 03:54:18 1983 John, the patent you requested is (I believe) "Protection of Data File Contents", Inventor: Dennis M. Ritchie, Assignee: Bell Telephone Labs, Filed: Jul. 9, 1973, Patent num: 4,135,240, Dated: Jan. 16, 1979. I have my copy next to my plates. Armando.