Granted Patent
Utility
US 5,081,041 · App. 07/503,838
Ionic component sensor and method for making and using same
Inventors:
Masao Yafuso, Evan A. Thompson, John L. Dektar, James Francis Fagan, Sanjay L. Patil
Patented Case
View Patent ↗
Granted: Jan 14, 1992
Filed: Apr 3, 1990
Inventors
Masao Yafuso
Evan A. Thompson
John L. Dektar
James Francis Fagan
Sanjay L. Patil
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.