At 11:37 AM 9/20/94 +1000, Mr Rhys Weatherley wrote:
When does the damn thing expire anyway?
Diffie-Hellman patent #4,200,770, awarded 3/29/1980.
Merkle-Hellman knapsacks patent #4,218,582, awarded 8/19/1980.
RSA patent #4,405,829, awarded 9/20/1983,
expires 9/20/2000.
Pohig-Hellman parent #4,424,414, awarded 3/03/1984.
Regards, -Rob- Robert W. Shirey SHIREY(_at_)MITRE(_dot_)ORG
tel 703.883.7210, sec 703.883.5749, fax 703.883.1397
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