Granted Patent
Utility
US 5,361,827 · App. 07/998,160
Economizer system for vapor generation apparatus
Inventors:
Richard D. Brown, Stephen Michael Renals
Patented Case
View Patent ↗
Granted: Nov 8, 1994
Filed: Dec 29, 1992
Inventors
Richard D. Brown
Stephen Michael Renals
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.