Granted Patent
Utility
US 5,289,823 · App. 07/881,756
Non-invasive aortic blood flow sensor and method for non-invasively measuring aortic blood flow
Inventor:
Joseph S. Eckerle
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: May 12, 1992
Inventor
Joseph S. Eckerle
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.