Granted Patent
Utility
US 5,374,543 · App. 07/956,697
Enhanced indole biosynthesis
Inventor:
Douglas C. Murdock
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: Oct 2, 1992
Inventor
Douglas C. Murdock
Assignee (at issue)
Amgen Inc.
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.