Granted Patent
Utility
US 4,517,022 · App. 06/530,747
Starch production from corn
Inventor:
Richard D. Harvey
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Oct 17, 1983
Inventor
Richard D. Harvey
Assignee (at issue)
Grain Processing 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.