Granted Patent
Utility
US 4,568,458 · App. 06/661,627
Fluidized bed reactor
Inventor:
Gregory MacLean
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: Oct 17, 1984
Inventor
Gregory MacLean
Assignee (at issue)
Austgen-Biojet International Pty, Ltd.
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.