Granted Patent
Utility
US 5,513,634 · App. 08/239,195
Combination integral bite block airway and nasal cannula
Inventor:
Frank W. Jackson
Patented Case
View Patent ↗
Granted: May 7, 1996
Filed: May 6, 1994
Inventor
Frank W. Jackson
Assignee (at issue)
Chek-Med Systems, 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.