Granted Patent
Utility
US 5,116,765 · App. 07/510,883
Method for automatic chemical analyzing
Inventors:
Haruhisa Watanabe, Satoshi Tanaka, Shinya Matsuyama
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Apr 18, 1990
Inventors
Haruhisa Watanabe
Satoshi Tanaka
Shinya Matsuyama
Assignee (at issue)
Olympus Optical 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.