Granted Patent
Utility
US 6,461,301 · App. 09/810,415
Resonance based pressure transducer system
Inventor:
Leif Smith
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Mar 19, 2001
Inventor
Leif Smith
Assignee (at issue)
Radi Medical Systems AB
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.