Let's see. Current patent law says that a patent is good
for 20 years from the date of filing so I guess Friedman's
patent expired in 1953. Tough break, Bill.
Rick Boivie
Fred Baker <fred(_at_)cisco(_dot_)com> on 08/03/2000 01:24:17 PM
To: ietf(_at_)ietf(_dot_)org
cc:
Subject: publication delays...
Coutrsy of Steve Bellovin - Next time someone complains about delays in RFC
publication, consider this...
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From: Bruce Schneier <schneier(_at_)counterpane(_dot_)com>
Subject: New Friedman Patent
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William Friedman filed a patent application for an Enigma-like encryption
device in 1933. The Patent Office awarded the patent this month:
http://www.patents.ibm.com/details?&pn=US06097812__&s_all=1
Bruce
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