Granted Patent
Utility
US 6,221,331 · App. 09/490,982
Method of synthesis of lithium substituted borohydride reagents and method of synthesis of reactive lithium hydride
Inventors:
Elizabeth Burkhardt, Christopher P. Sutton, Joerg Bruening, David F. Rouda
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: Jan 24, 2000
Inventors
Elizabeth Burkhardt
Christopher P. Sutton
Joerg Bruening
David F. Rouda
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.