Granted Patent
Utility
US 5,840,858 · App. 08/581,604
Protein purification using immobilized metal affinity chromatography for complement receptor proteins
Inventors:
Thomas M. Smith, Gail Folena-Wasserman
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Apr 3, 1996
Inventors
Thomas M. Smith
Gail Folena-Wasserman
Assignee (at issue)
T Cell Sciences, Inc.
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.