Granted Patent
Utility
US 4,752,454 · App. 06/686,774
Process for the preparation of ultrapure active metal fluorides
Inventors:
Ricardo C. Pastor, Luisa E. Gorre
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Dec 27, 1984
Inventors
Ricardo C. Pastor
Luisa E. Gorre
Assignee (at issue)
Hughes Aircraft Company
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.