Granted Patent
Utility
US 6,153,224 · App. 08/875,391
Carrier particles for use in dry powder inhalers
Inventor:
John Staniforth
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Sep 25, 1997
Inventor
John Staniforth
Assignee (at issue)
Co-ordinated Drug Development Limited
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.