-that used in the Unix "compress" command. It is apparently covered by
-U.S. patents 4,814,746 (owned by IBM) and 4,558,302 (owned by Unisys),
-and corresponding patents in various other countries (but not
-Australia). If this is of concern, you can build the package without
-including BSD-Compress. To do this, edit net/ppp-comp.h to change the
-definition of DO_BSD_COMPRESS to 0. The bsd-comp.c files are then no
-longer needed, so the references to bsd-comp.o may optionally be
-removed from the Makefiles.
+that used in the Unix "compress" command. It was apparently covered
+by U.S. patents 4,814,746 (owned by IBM) and 4,558,302 (owned by
+Unisys), and corresponding patents in various other countries (but not
+Australia). I believe the Unisys patent expired in the US on 20 June
+2003, and that the IBM patent was older.
+
+If these patents are of concern in your situation, you can build the
+package without including BSD-Compress. To do this, edit
+net/ppp-comp.h to change the definition of DO_BSD_COMPRESS to 0. The
+bsd-comp.c files are then no longer needed, so the references to
+bsd-comp.o may optionally be removed from the Makefiles.