Granted Patent
Utility
US 6,040,471 · App. 09/173,268
Method for preparing certain acetonitriles
Inventor:
Ann Marie Diederich
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Oct 15, 1998
Inventor
Ann Marie Diederich
Assignee (at issue)
SmithKline Beecham Limited
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.