Granted Patent
Utility
US 5,958,201 · App. 08/703,121
Sodium ion-selective-electrode membrane having extended uselife
Inventors:
Alan R. Craig, Michael Patrick Reidy
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Aug 26, 1996
Inventors
Alan R. Craig
Michael Patrick Reidy
Assignee (at issue)
Dade Behring 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.