Granted Patent
Utility
US 4,443,379 · App. 06/358,995
Solid bleaching composition for edible oils
Inventors:
Dennis R. Taylor, Zenon Demidowicz
Patented Case
View Patent ↗
Granted: Apr 17, 1984
Filed: Mar 17, 1982
Inventors
Dennis R. Taylor
Zenon Demidowicz
Assignee (at issue)
Harshaw/Filtrol Partnership
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.