Granted Patent
Utility
US 4,244,936 · App. 06/082,832
Recovery of tellurium from acidic sulfonated ion exchange resins by acid elution
Inventors:
James G. Victor, Richard B. Papp, Alfred A. Wolsky
Patented Case
View Patent ↗
Granted: Jan 13, 1981
Filed: Oct 9, 1979
Inventors
James G. Victor
Richard B. Papp
Alfred A. Wolsky
Assignee (at issue)
Atlantic Richfield 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.