Granted Patent
Utility
US 6,475,523 · App. 09/000,065
Powders comprising anti-adherant materials for use in dry powder inhalers
Inventor:
John Staniforth
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Jun 16, 1998
Inventor
John Staniforth
Assignee (at issue)
Vettore, 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.