Granted Patent
Utility
US 5,245,992 · App. 07/885,691
Tracheal tube with flexible segment
Inventor:
Richard V. Nye
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: May 19, 1992
Inventor
Richard V. Nye
Assignee (at issue)
MallincKrodt Medical, Inc.
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.