Granted Patent
Utility
US 4,599,116 · App. 06/669,491
Alkaline cleaning process
Inventors:
Peter F. King, Samuel Farina, III, Karl A. Korinek
Patented Case
View Patent ↗
Granted: Jul 8, 1986
Filed: Nov 8, 1984
Inventors
Peter F. King
Samuel Farina, III
Karl A. Korinek
Assignee (at issue)
Parker Chemical 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.