Granted Patent
Utility
US 4,824,634 · App. 07/081,969
Element with burnable poison coating
Inventors:
Nathan Fuhrman, Wlliam J. Bryan
Patented Case
View Patent ↗
Granted: Apr 25, 1989
Filed: Aug 5, 1987
Inventors
Nathan Fuhrman
Wlliam J. Bryan
Assignee (at issue)
Combustion Engineering, Inc.
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.