Granted Patent
Utility
US 5,988,163 · App. 09/076,255
Dry powder medicament inhalator having an inhalation-activated flow diverting means for triggering delivery of delivery of medicament
Inventors:
Robert A. Casper, Frank A. Leith, David L. Gardner
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: May 11, 1998
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.