Granted Patent
Utility
US 4,907,268 · App. 07/325,130
Methods and apparatus for controlling access to information processed a multi-user-accessible digital computer
Inventors:
Robert J. Bosen, James J. Tucker
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Mar 15, 1989
Inventors
Robert J. Bosen
James J. Tucker
Assignee (at issue)
Enigma Logic, 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.