Granted Patent
Utility
US 6,652,820 · App. 09/824,623
Methods of making cesium salts and other alkali metal salts
Inventor:
Bart F. Bakke
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Apr 2, 2001
Inventor
Bart F. Bakke
Assignee (at issue)
Cabot Corporation
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.