Granted Patent
Utility
US 6,539,942 · App. 09/837,326
Endotracheal intubation device
Inventors:
Richard Schwartz, John Schwartz
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Apr 19, 2001
Inventors
Richard Schwartz
John Schwartz
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.