Granted Patent
Utility
US 4,247,325 · App. 06/061,606
pH Control during leaching of aluminum slags
Inventors:
Ronald E. Beese, Niranjan M. Parikh, Carl F. Bauer
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Jul 30, 1979
Inventors
Ronald E. Beese
Niranjan M. Parikh
Carl F. Bauer
Assignee (at issue)
American Can Company
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.