Granted Patent
Utility
US 6,722,360 · App. 09/881,862
Methods and devices for improving breathing in patients with pulmonary disease
Inventor:
Rajiv Doshi
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Jun 14, 2001
Inventor
Rajiv Doshi
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.