Granted Patent
Utility
US 4,603,574 · App. 06/692,976
Blood pressure transducer tester
Inventor:
Jacob J. Norman
Patented Case
View Patent ↗
Granted: Aug 5, 1986
Filed: Jan 22, 1985
Inventor
Jacob J. Norman
Assignee (at issue)
American Hospital Supply Corp.
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.