Granted Patent
Utility
US 5,595,175 · App. 08/218,551
Inhaler for administration of powdery substances
Inventors:
Eric Malcher, Kurt Zechner
Patented Case
View Patent ↗
Granted: Jan 21, 1997
Filed: Mar 28, 1994
Inventors
Eric Malcher
Kurt Zechner
Assignee (at issue)
Sandoz AG
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.