Granted Patent
Utility
US 4,495,710 · App. 06/519,177
Method for stabilizing particulate low rank coal in a fluidized bed
Inventor:
Javan D. Ottoson
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Aug 1, 1983
Inventor
Javan D. Ottoson
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.