Granted Patent
Utility
US 4,990,447 · App. 07/317,818
Process for the purification of serum albumin
Inventors:
Boudewijn W. Konig, Michiel N. Hamers, Cornelis Jacobus Van Der Laken
Patented Case
View Patent ↗
Granted: Feb 5, 1991
Filed: Mar 1, 1989
Inventors
Boudewijn W. Konig
Michiel N. Hamers
Cornelis Jacobus Van Der Laken
Assignee (at issue)
Gist-Brocades
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.