Granted Patent
Utility
US 5,353,807 · App. 07/985,670
Magnetically guidable intubation device
Inventor:
Thomas Demarco
Patented Case
View Patent ↗
Granted: Oct 11, 1994
Filed: Dec 7, 1992
Inventor
Thomas Demarco
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.