Granted Patent
Utility
US 6,273,085 · App. 09/226,054
Dry powder inhaler
Inventors:
Robert F. Eisele, Karen Davies, Jeffrey Chen, Bernard Greenspan
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Jan 5, 1999
Inventors
Robert F. Eisele
Karen Davies
Jeffrey Chen
Bernard Greenspan
Assignee (at issue)
Dura Pharmaceuticals, Icn.
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.