Granted Patent
Utility
US 4,608,247 · App. 06/664,205
Composition for bactericidal treatment of water
Inventor:
Charles F. Heinig
Patented Case
View Patent ↗
Granted: Aug 26, 1986
Filed: Oct 24, 1984
Inventor
Charles F. Heinig
Assignee (at issue)
George J. LeMire
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.