Granted Patent
Utility
US 5,754,657 · App. 08/815,370
Authentication of a message source
Inventors:
John F. Schipper, Peter Van Wyck Loomis, Allan M. Pelley, James M. Janky, Len Sheynblat
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Mar 10, 1997
Inventors
John F. Schipper
Peter Van Wyck Loomis
Allan M. Pelley
James M. Janky
Len Sheynblat
Assignee (at issue)
Trimble Navigation Limited
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.