Granted Patent
Utility
US 4,348,294 · App. 06/163,365
One package replenisher for aluminum cleaner
Inventor:
Peter F. King
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Jun 26, 1980
Inventor
Peter F. King
Assignee (at issue)
Occidental Chemical Corporation
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.