Granted Patent
Utility
US 5,261,413 · App. 07/736,689
Blood pressure measure system
Inventor:
Yoshimi Kawahara
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Jul 26, 1991
Inventor
Yoshimi Kawahara
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.