Granted Patent
Utility
US 4,729,948 · App. 06/647,679
Dry analytical element for .alpha.-amylase
Inventors:
Masakuni Saruhashi, Isao Haga, Morio Kobayashi, Kazumi Arai
Patented Case
View Patent ↗
Granted: Mar 8, 1988
Filed: Sep 5, 1984
Inventors
Masakuni Saruhashi
Isao Haga
Morio Kobayashi
Kazumi Arai
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.