RACAL-GUARDATA, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5048087 Key management for encrypted packet based networksExpiredOct 16, 90Sep 10, 91[H04L]
4965804 Key management for encrypted packet based networksExpiredFeb 03, 89Oct 23, 90[H04L]
4351982 RSA Public-key data encryption system having large random prime number generating microprocessor or the likeExpiredDec 15, 80Sep 28, 82[H04L]
4322576 Message format for secure communication over data linksExpiredDec 28, 79Mar 30, 82[H04L]

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