Granted Patent
Utility
US 5,225,321 · App. 07/727,341
Measuring apparatus using enzyme electrodes and the method thereof
Inventors:
Ryuzo Hayashi, Akio Kariyone, Yoshio Hashizume
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Jul 8, 1991
Inventors
Ryuzo Hayashi
Akio Kariyone
Yoshio Hashizume
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.