Granted Patent
Utility
US 6,780,321 · App. 10/188,810
Recovery of oil from spent bleached earth
Inventors:
Narain Girdhar Chanrai, Santosh Gajanan Burde
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Jul 5, 2002
Inventors
Narain Girdhar Chanrai
Santosh Gajanan Burde
Assignee (at issue)
Kewalram Oils SDN GHD
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.