Granted Patent
Utility
US 5,324,497 · App. 07/843,945
Integrated procedure for high yield production of chlorine dioxide and apparatus used therefor
Inventor:
G. Oscar Westerlund
Patented Case
View Patent ↗
Granted: Jun 28, 1994
Filed: Feb 26, 1992
Inventor
G. Oscar Westerlund
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.