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Newsgroups: comp.unix.bsd Path: sserve!manuel!munnari.oz.au!sgiblab!sdd.hp.com!wupost!uunet!stan!imp From: imp@solbourne.com (Warner Losh) Subject: Re: AT&T vs. BSDI --> 4.3BSD-NET2 distribution requires AT&T license!!! Message-ID: <BsA6J0.4M1@solbourne.com> Organization: Solbourne, User Interface Group References: <l6nibgINNje6@neuro.usc.edu> <1992Jul21.152007.1126@news2.cis.umn.edu> <1992Jul30.174414.28488@kas.helios.mn.org> Date: Sat, 1 Aug 1992 01:23:23 GMT Lines: 21 In article <1992Jul30.174414.28488@kas.helios.mn.org> rhealey@kas.helios.mn.org (Rob Healey) writes: > the concepts of UID,GID,SUID,SGID, These are covered by a patent. However, this patent was put in the Public Domain (I use that term correctly) many years ago by Richie (I think). I've seen pictures of the document that has the issue date, etc on it with the words "Donated to the Public Domain on <date> <Signature>". So that concept, at least, is in the public domain. I'm sure that you could find examples of almost all of the other "concepts" in previous systems. Multics and TOPS-20 spring to mind as good places to look. Warner -- Warner Losh imp@Solbourne.COM Interview Horror Story #882: "It's pretty informal around here. Thursdays are clothing optional.."