Granted Patent
Utility
US 6,474,084 · App. 09/746,213
Method and apparatus for energy recovery in an environmental control system
Inventors:
Dale A. Gauthier, Guy D. Covert
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Dec 22, 2000
Inventors
Dale A. Gauthier
Guy D. Covert
Assignee (at issue)
Pentech Energy Solutions, 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.