Granted Patent
Utility
US 4,297,274 · App. 06/128,253
Protein from red blood cells and process for isolating it
Inventors:
Hans Bohn, Heinz Haupt
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Mar 7, 1980
Inventors
Hans Bohn
Heinz Haupt
Assignee (at issue)
Behringwerke Aktiengesellschaft
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.