Granted Patent
Utility
US 4,932,363 · App. 07/279,157
Fluidized bed reactor
Inventor:
Reijo Kuivalainen
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Nov 21, 1988
Inventor
Reijo Kuivalainen
Assignee (at issue)
A. Ahlstrom 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.