Granted Patent
Utility
US 6,082,355 · App. 09/031,668
Inhalation apparatus
Inventor:
David Howlett
Patented Case
View Patent ↗
Granted: Jul 4, 2000
Filed: Feb 27, 1998
Inventor
David Howlett
Assignee (at issue)
Bespak plc
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.