Granted Patent
Utility
US 5,690,102 · App. 07/523,832
Head harness for a respiratory mask
Inventors:
Fernand Bertheau, Patrick Maire
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: May 16, 1990
Inventors
Fernand Bertheau
Patrick Maire
Assignee (at issue)
Intertechnique
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.