Granted Patent
Utility
US 4,584,077 · App. 06/639,769
Process for recovering sodium carbonate from trona and other mixtures of sodium carbonate and sodium bicarbonate
Inventors:
Frederick P. Chlanda, Krishnamurthy N. Mani
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Aug 13, 1984
Inventors
Frederick P. Chlanda
Krishnamurthy N. Mani
Assignee (at issue)
ALLIED CONSULTING, 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.