Granted Patent
Utility
US 4,566,910 · App. 06/441,388
Starch phosphates and amphoteric starch phosphates
Inventors:
E. Daniel Hubbard, Richard D. Harvey, Mark L. Hogen
Patented Case
View Patent ↗
Granted: Jan 28, 1986
Filed: Nov 12, 1982
Inventors
E. Daniel Hubbard
Richard D. Harvey
Mark L. Hogen
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.