Granted Patent
Utility
US 5,037,527 · App. 07/235,970
Reference electrode and a measuring apparatus using the same
Inventor:
Ryuzo Hayashi
Patented Case
View Patent ↗
Granted: Aug 6, 1991
Filed: Aug 24, 1988
Inventor
Ryuzo Hayashi
Assignee (at issue)
Kanzaki Paper Manufacturing Co., Ltd.
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.