Granted Patent
Utility
US 6,550,477 · App. 09/492,714
Dry powder medicament inhalator having an inhalation-activated flow diverting means for triggering delivery of medicament
Inventors:
Robert A. Casper, Frank A. Leith, David L. Gardner, John M. Snow, Zachary Wood Lyon, David Scott Farrar
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Jan 27, 2000
Inventors
Robert A. Casper
Frank A. Leith
David L. Gardner
John M. Snow
Zachary Wood Lyon
David Scott Farrar
Assignee (at issue)
Innovatio Devices 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.