Drew Scott Daniels was attempting to find out when
all the LZW patents all over the world were
going to expire. This is not as easy as you might think!
Drew was kind enough to forward links to the message
boards where the question was posted. To follow the thread,
go to the bottom of the page and click on the Next
by thread link.

http://lists.debian.org/debian-legal/2003/debian-legal-200303/msg00526.html