Granted Patent
Utility
US 5,259,377 · App. 07/859,825
Endotracheal tube stylet
Inventor:
Michael Goodman Schroeder
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Mar 30, 1992
Inventor
Michael Goodman Schroeder
Assignee (at issue)
Stephen M. Daugherty
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.