Granted Patent
Utility
US 5,186,895 · App. 07/656,006
Method and apparatus for automatic analysis of fluid composition involving a time-dependent variation thereof
Inventors:
Mitsuo Onofusa, Nobuyoshi Hashimoto, Kimiteru Tagawa, Michiro Hagiwara
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Feb 15, 1991
Inventors
Mitsuo Onofusa
Nobuyoshi Hashimoto
Kimiteru Tagawa
Michiro Hagiwara
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.