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From: mark@umcp-cs.UUCP
Newsgroups: net.legal
Subject: Re: Copyright/Patent Infringment Questio - (nf)
Message-ID: <2236@umcp-cs.UUCP>
Date: Sun, 28-Aug-83 19:37:48 EDT
Article-I.D.: umcp-cs.2236
Posted: Sun Aug 28 19:37:48 1983
Date-Received: Thu, 1-Sep-83 00:27:56 EDT
References: <1633@hp-pcd.UUCP>
Organization: Univ. of Maryland, Computer Science Dept.
Lines: 11

As another interesting example of a patent, Dennis Ritchie
holds a patent on the Unix file protection scheme
(the rwx for me, my group, and others).  I have a copy--
it is all implemented (or appears to be implemented)
in hardware.
-- 
spoken:	mark weiser
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