Granted Patent
Utility
US 4,133,639 · App. 05/663,828
Test article including a covalently attached diagnostic reagent and method
Inventor:
Richard A. Harte
Patented Case
View Patent ↗
Granted: Jan 9, 1979
Filed: Mar 4, 1976
Inventor
Richard A. Harte
Assignee (at issue)
International Diagnostic 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.