Granted Patent
Utility
US 4,276,262 · App. 06/081,269
Chlorine dioxide generator
Inventor:
Gerald Cowley
Patented Case
View Patent ↗
Granted: Jun 30, 1981
Filed: Oct 2, 1979
Inventor
Gerald Cowley
Assignee (at issue)
ERCO Industries Limited
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.