Granted Patent
Utility
US 4,058,542 · App. 05/740,148
Conversion of thallium (I) to thallium (III)
Inventors:
Nabil Rizkalla, Anthony N. Naglieri
Patented Case
View Patent ↗
Granted: Nov 15, 1977
Filed: Nov 8, 1976
Inventors
Nabil Rizkalla
Anthony N. Naglieri
Assignee (at issue)
Halcon International, Inc.
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.