Granted Patent
Utility
US 4,984,577 · App. 07/326,147
Oscillometric non-invasive method for measuring blood pressure and apparatus for automated oscillometric blood pressure measuring
Inventor:
Michael Frankenreiter
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Mar 20, 1989
Inventor
Michael Frankenreiter
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.