Granted Patent
Utility
US 5,305,390 · App. 07/855,503
Person and object recognition system
Inventors:
Ronald G. Frey, Thomas C. Guthrie
Patented Case
View Patent ↗
Granted: Apr 19, 1994
Filed: Mar 20, 1992
Inventors
Ronald G. Frey
Thomas C. Guthrie
Assignee (at issue)
Datatec Industries 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.