Granted Patent
Utility
US 5,283,821 · App. 07/905,629
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Inventor:
Zeses Karoutas
Patented Case
View Patent ↗
Granted: Feb 1, 1994
Filed: Jun 29, 1992
Inventor
Zeses Karoutas
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.