Granted Patent
Utility
US 6,189,097 · App. 08/822,661
Digital Certificate
Inventors:
Frank A. Tycksen, Jr., Charles Jennings
Patented Case
View Patent ↗
Granted: Feb 13, 2001
Filed: Mar 24, 1997
Inventors
Frank A. Tycksen, Jr.
Charles Jennings
Assignee (at issue)
Preview Systems
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.