Granted Patent
Utility
US 4,756,360 · App. 07/030,148
Fluidized bed heat exchanger
Inventors:
Albert H. Rawdon, Gerald S. Gielda
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Mar 25, 1987
Inventors
Albert H. Rawdon
Gerald S. Gielda
Assignee (at issue)
Riley Stoker 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.