Granted Patent
Utility
US 5,638,813 · App. 08/476,485
Tracheal tube with self-supporting tracheal tube cuff
Inventor:
Scott D. Augustine
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Jun 7, 1995
Inventor
Scott D. Augustine
Assignee (at issue)
Augustine 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.