Granted Patent
Utility
US 6,143,260 · App. 09/351,956
Method for removing magnesium from brine to yield lithium carbonate
Inventor:
Daniel Alfred Boryta
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Jul 12, 1999
Inventor
Daniel Alfred Boryta
Assignee (at issue)
Chemetall Foote 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.