Granted Patent
Utility
US 5,224,478 · App. 07/932,741
Reflecting-type oxymeter probe
Inventors:
Hiroshi Sakai, Toshihiko Ogura, Satoshi Kohmura
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Aug 25, 1992
Inventors
Hiroshi Sakai
Toshihiko Ogura
Satoshi Kohmura
Assignee (at issue)
Colin Electronics 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.