[171197] in North American Network Operators' Group
US patent 5473599
daemon@ATHENA.MIT.EDU (Nick Hilliard)
Tue Apr 22 04:26:59 2014
X-Envelope-To: <nanog@nanog.org>
Date: Tue, 22 Apr 2014 10:26:07 +0200
From: Nick Hilliard <nick@foobar.org>
To: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
... turns 20 today.
This is the patent which covers hsrp, vrrp, many applications of carp and
some other vendor-specific standby protocols. Assuming no term
adjustments, 20 years is the normal term for US patents so unless there's
been any adjustments / continuations, probably this patent is now expired.
More details on: https://www.google.com/patents/US5473599
Nick
