Granted Patent
Utility
US 4,251,502 · App. 06/045,850
Modular chlorine dioxide generation systems
Inventor:
James H. Forster
Patented Case
View Patent ↗
Granted: Feb 17, 1981
Filed: Jun 5, 1979
Inventor
James H. Forster
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.