Granted Patent
Utility
US 5,797,392 · App. 08/785,960
Inhaler
Inventors:
Erik Keldmann, John Reipur
Patented Case
View Patent ↗
Granted: Aug 25, 1998
Filed: Jan 22, 1997
Inventors
Erik Keldmann
John Reipur
Assignee (at issue)
Direct Haler A/S
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.