Granted Patent
Utility
US 5,014,632 · App. 07/232,774
Distributor plate in a fluidized bed reactor
Inventor:
Juhani Isaksson
Patented Case
View Patent ↗
Granted: May 14, 1991
Filed: Aug 16, 1988
Inventor
Juhani Isaksson
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.