Granted Patent
Utility
US 6,497,850 · App. 09/707,467
Recovery of lithium compounds from brines
Inventors:
Daniel Alfred Boryta, Teresita Frianeza Kullberg, Anthony Michael Thurston
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Nov 7, 2000
Inventors
Daniel Alfred Boryta
Teresita Frianeza Kullberg
Anthony Michael Thurston
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.