Granted Patent
Utility
US 5,439,615 · App. 08/167,773
Thickened cleaner compositions
Inventors:
Ginette Lefebvre, Line Fiquet
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Dec 15, 1993
Inventors
Ginette Lefebvre
Line Fiquet
Assignee (at issue)
Witco 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.