Granted Patent
Utility
US 6,792,623 · App. 10/316,928
Helmet for artificial respiration without the aid of masks
Inventor:
Libero Luppi
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Dec 12, 2002
Inventor
Libero Luppi
Assignee (at issue)
Starmed S.p.A.
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.