Granted Patent
Utility
US 5,409,666 · App. 08/137,289
Sensors and methods for sensing
Inventors:
Colleen C. Nagel, James G. Bentsen, John L. Dektar, Cary A. Kipke, Masao Yafuso, Alan R. Katritzky
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Oct 14, 1993
Inventors
Colleen C. Nagel
James G. Bentsen
John L. Dektar
Cary A. Kipke
Masao Yafuso
Alan R. Katritzky
Assignee (at issue)
Minnesota Mining and Manufacturing Company
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.