Granted Patent
Utility
US 6,732,273 · App. 09/176,419
Priority and security coding system for electronic mail messages
Inventor:
Charles Calvin Byers
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Oct 21, 1998
Inventor
Charles Calvin Byers
Assignee (at issue)
LUCENT TECHNOLOGIES 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.