Granted Patent
Utility
US 4,977,246 · App. 07/361,885
High recovery process for antihemophilic factor
Inventors:
Ted C. K. Lee, Michael E. Hrinda
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Jun 6, 1989
Inventors
Ted C. K. Lee
Michael E. Hrinda
Assignee (at issue)
Rorer Pharmaceutical Corporation
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.