Granted Patent
Utility
US 5,823,183 · App. 08/823,139
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
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Mar 25, 1997
Inventors
Robert A. Casper
Frank A. Leith
David L. Gardner
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.