Granted Patent
Utility
US 5,048,087 · App. 07/601,159
Key management for encrypted packet based networks
Inventors:
Nick G. Trbovich, Thomas D. Campbell
Patented Case
View Patent ↗
Granted: Sep 10, 1991
Filed: Oct 16, 1990
Inventors
Nick G. Trbovich
Thomas D. Campbell
Assignee (at issue)
Racal Data Communications, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.