Granted Patent
Utility
US 4,579,944 · App. 06/715,050
Derivatization of starch
Inventors:
Richard D. Harvey, Roger McPherson
Patented Case
View Patent ↗
Granted: Apr 1, 1986
Filed: Mar 22, 1985
Inventors
Richard D. Harvey
Roger McPherson
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.