Granted Patent
Utility
US 6,506,590 · App. 09/483,419
Plasmids, their construction and their use in the manufacture of interleukin-4 and interleukin-4 muteins
Inventors:
Heiner Apeler, Hermann Wehlmann
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Jan 14, 2000
Inventors
Heiner Apeler
Hermann Wehlmann
Assignee (at issue)
Bayer 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.