Granted Patent
Utility
US 4,701,438 · App. 06/896,041
Treating compositions for used frying oils
Inventors:
Dennis R. Taylor, Kevin P. Gallavan
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Aug 13, 1986
Inventors
Dennis R. Taylor
Kevin P. Gallavan
Assignee (at issue)
Kaiser Aluminum & 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.