Granted Patent
Utility
US 5,197,636 · App. 07/830,387
Fast activation chlorine dioxide delivery apparatus
Inventors:
David W. Mitchell, John Christopher Baker, Hampar L. Karageozian, Daniel F. Smith
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Feb 3, 1992
Inventors
David W. Mitchell
John Christopher Baker
Hampar L. Karageozian
Daniel F. Smith
Assignee (at issue)
Allergan, Inc.
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.