Granted Patent
Utility
US 5,863,972 · App. 08/836,370
Randomly segmented thermoplastic polyurethanes as matrix for electrochemical analysis of Ca.sup.++ ions
Inventors:
Dirk Beckelmann, Joseph Berger
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Jul 25, 1997
Inventors
Dirk Beckelmann
Joseph Berger
Assignee (at issue)
Chiron Diagnostics 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.