Granted Patent
Utility
US 5,230,879 · App. 07/827,334
Reduction of metal halates and recovery of metal halides
Inventors:
Phillip R. Beaver, Bonnie G. McKinnie
Patented Case
View Patent ↗
Granted: Jul 27, 1993
Filed: Jan 29, 1992
Inventors
Phillip R. Beaver
Bonnie G. McKinnie
Assignee (at issue)
Ethyl 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.