Granted Patent
Utility
US 4,880,746 · App. 07/110,105
Streptomycetes plasmid PSG5, a process for obtaining it, and its use
Inventors:
Wolfgang Wohlleben, Agnes Schulte, Alfred Puhler
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Oct 14, 1987
Inventors
Wolfgang Wohlleben
Agnes Schulte
Alfred Puhler
Assignee (at issue)
Hoechst GmbH
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.