Granted Patent
Utility
US 5,352,601 · App. 07/936,103
Method for recovering purified 52,000 dalton fraction of human pancreatic cholesterol esterase using deae-cellulose, hydroxyapatite and heparin-sepharose
Inventors:
Louis G. Lange, III, Curtis A. Spilburg, Paula M. Kinnunen
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Aug 26, 1992
Inventors
Louis G. Lange, III
Curtis A. Spilburg
Paula M. Kinnunen
Assignee (at issue)
Louis G. Lange, III
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.