Granted Patent
Utility
US 5,594,000 · App. 08/469,791
Spirofurane derivatives
Inventors:
Edwin S. C. Wu, Ronald C. Griffith
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: Jun 6, 1995
Inventors
Edwin S. C. Wu
Ronald C. Griffith
Assignee (at issue)
Astra AB
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.