Granted Patent
Utility
US 5,554,527 · App. 07/871,575
Agent for the storage and suspension of cells, especially erythrocytes
Inventor:
Karl Fickenscher
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: Apr 20, 1992
Inventor
Karl Fickenscher
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.