Granted Patent
Utility
US 4,086,328 · App. 05/770,361
Production of chlorine dioxide from buffered reaction media
Inventor:
Richard Swindells
Patented Case
View Patent ↗
Granted: Apr 25, 1978
Filed: Feb 22, 1977
Inventor
Richard Swindells
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.