Granted Patent
Utility
US 4,599,178 · App. 06/631,125
Recovery of glycerine from saline waters
Inventor:
George C. Blytas
Patented Case
View Patent ↗
Granted: Jul 8, 1986
Filed: Jul 16, 1984
Inventor
George C. Blytas
Assignee (at issue)
SHELL OIL 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.