http://www.rfc-editor.org/rfc/rfc1822.txt
RFC 1822: A Grant of Rights to Use a Specific IBM patent with Photuris, J. Lowe1995-08-01T23:00:00-00:00This Request for Comments records a grant by IBM Corporation to permit the conditional free use of one of its patents. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.