Granted Patent
Utility
US 4,824,578 · App. 07/023,861
Method of purifying bioactive substances by biospecific adsorption
Inventors:
Michel Schneider, Christian Guillot, Bernard Lamy
Patented Case
View Patent ↗
Granted: Apr 25, 1989
Filed: Feb 5, 1987
Inventors
Michel Schneider
Christian Guillot
Bernard Lamy
Assignee (at issue)
Battelle Memorial Institute
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.