Granted Patent
Utility
US 6,059,844 · App. 09/186,706
Cleaning process
Inventor:
Jean Hypolites Koek
Patented Case
View Patent ↗
Granted: May 9, 2000
Filed: Nov 5, 1998
Inventor
Jean Hypolites Koek
Assignee (at issue)
Lever Brothers 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.