Granted Patent
Utility
US 6,834,650 · App. 10/018,899
Face or nose mask for non-invasive ventilation of patients in general
Inventors:
Massimo Fini, Paolo Bergamaschi, Stefano Nava
Patented Case
View Patent ↗
Granted: Dec 28, 2004
Filed: Jun 6, 2002
Inventors
Massimo Fini
Paolo Bergamaschi
Stefano Nava
Assignee (at issue)
MALLINCKRODT LLC
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.