Granted Patent
Utility
US 4,407,297 · App. 06/208,825
Method and apparatus for performing non-invasive blood pressure and pulse rate measurements
Inventor:
Michael E. Croslin
Patented Case
View Patent ↗
Granted: Oct 4, 1983
Filed: Nov 20, 1980
Inventor
Michael E. Croslin
Assignee (at issue)
Med-Tek LLC
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.