Granted Patent
Utility
US 5,759,404 · App. 08/648,108
Method for separation and synthetic polymers that can be used as separation media in the method
Inventors:
Jan Ericsson, Eva Berggren, Liselotte Lundh
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Jul 8, 1996
Inventors
Jan Ericsson
Eva Berggren
Liselotte Lundh
Assignee (at issue)
Pharmacia Biotech AB
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.