History for IPR disclosure
Microsoft's patent claim pertaing to draft-janardhan-dnsext-aging

From: http://www.ietf.org/ietf-ftp/IPR/MICROSOFT-DNSEXT-AGING.txt

Received November 29, 2001
From: "Dawna Hoerle (LCA)"

Re:       DNS Stale Resource Records Removal Mechanism
           

This is to advise the IETF that Microsoft believes it has patent(s) and/or pending
application(s) that relate to the technologies discussed in this submission. 
Microsoft intends to make licenses available under any such patent(s) or pending
application(s) as follows:
 
If part(s) of this contribution is(are) included in an IETF standard and Microsoft
has patent(s) and/or pending application(s) that are essential to implementation of
such included part(s) in such standard, Microsoft is prepared to grant a license to
implement such included part(s) on reasonable and non-discriminatory terms and
conditions, provided a reciprocal license is granted to Microsoft and other parties
under any patents or pending applications that the license applicant has to any
technology essential to implement that IETF standard.
 
This document and the information contained herein is provided on an "AS IS" basis
and the contributors and Microsoft Corporation DISCLAIM ALL WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.
 
Any questions regarding this communication should be directed to:
 
            Microsoft Standards Group
            c/o Dawna Hoerle
            Microsoft Corporation
            One Microsoft Way
            Bldg. 114/2306
            Redmond, WA 98052