Granted Patent
Utility
US 5,731,178 · App. 08/451,308
Attachment-elements for stimulation of eukaryotic expression systems
Inventors:
Albrecht E. Sippel, Aribert Stief
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: May 26, 1995
Inventors
Albrecht E. Sippel
Aribert Stief
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.