Granted Patent
Utility
US 6,169,203 · App. 09/028,890
Method of preparation of alkali-metal amides
Inventor:
Joseph A. Corella, II
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Feb 24, 1998
Inventor
Joseph A. Corella, II
Assignee (at issue)
Mine Safety Appliances Company, LLC
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.