Granted Patent
Utility
US 4,664,717 · App. 06/673,358
Methods for hydrolyzing polysaccharides and compositions useful therein
Inventor:
Donald C. Young
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Nov 20, 1984
Inventor
Donald C. Young
Assignee (at issue)
Union Oil Company of California
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.