Granted Patent
Utility
US 5,921,239 · App. 08/779,395
Face mask for patient breathing
Inventors:
Shawn R. McCall, Daniel E. Kimble, Allan Jones
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Jan 7, 1997
Inventors
Shawn R. McCall
Daniel E. Kimble
Allan Jones
Assignee (at issue)
Sunrise Medical HHG, 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.