Granted Patent
Utility
US 5,133,865 · App. 07/698,439
Process for producing a hafnium extraction scrub solvent
Inventors:
Hani A. M. Abodishish, Douglas J. Leavitt
Patented Case
View Patent ↗
Granted: Jul 28, 1992
Filed: May 10, 1991
Inventors
Hani A. M. Abodishish
Douglas J. Leavitt
Assignee (at issue)
Westinghouse Electric 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.