Granted Patent
Utility
US 4,987,225 · App. 07/290,535
Removal of water miscible materials from glycoside mixtures
Inventors:
Carl E. Pickens, Patrick M. McCurry, Jr.
Patented Case
View Patent ↗
Granted: Jan 22, 1991
Filed: Dec 23, 1988
Inventors
Carl E. Pickens
Patrick M. McCurry, Jr.
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.