Expired patents

Brian E Carpenter <brian.e.carpenter@gmail.com> Fri, 20 June 2014 01:24 UTC

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Date: Fri, 20 Jun 2014 13:24:34 +1200
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Subject: Expired patents
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I was wondering whether there is a need for an occasional sweep
over the IPR disclosures to tag all those that cite expired
patents. We've been at this long enough that it is starting to
be relevant. For example, I just noticed that IBM's NAT patent
(US5371852) must have expired by now. It was discosed in
https://datatracker.ietf.org/ipr/119/
and
https://datatracker.ietf.org/ipr/208/

Regards
   Brian