Granted Patent
Utility
US 4,868,106 · App. 06/919,676
Analytical element and method for determining a component in a test sample
Inventors:
Tsukasa Ito, Satoshi Kawakatsu, Akira Onishi, Masayo Ishikawa
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Oct 16, 1986
Inventors
Tsukasa Ito
Satoshi Kawakatsu
Akira Onishi
Masayo Ishikawa
Assignee (at issue)
Konishiroku Photo Industry 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.