Granted Patent
Utility
US 5,371,807 · App. 07/855,378
Method and apparatus for text classification
Inventors:
Michael Register, Narasimhan Kannan
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Mar 20, 1992
Inventors
Michael Register
Narasimhan Kannan
Assignee (at issue)
Digital Equipment Corporation
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.