Granted Patent
Utility
US 5,282,442 · App. 07/997,793
Spiral tube wall furnace seismic/wind tube stop
Inventor:
Ronald G. Payne
Patented Case
View Patent ↗
Granted: Feb 1, 1994
Filed: Dec 29, 1992
Inventor
Ronald G. Payne
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.