Granted Patent
Utility
US 4,621,952 · App. 06/596,366
Fluidized bed discharge process
Inventor:
Robert G. Aronson
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Apr 3, 1984
Inventor
Robert G. Aronson
Assignee (at issue)
Union Carbide Corporation
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.