Granted Patent
Utility
US 6,553,778 · App. 09/760,561
Multi-stage refrigeration system
Inventors:
Russ Tipton, Terry Bush, Mike Graham, Jack Saunders
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Jan 16, 2001
Inventors
Russ Tipton
Terry Bush
Mike Graham
Jack Saunders
Assignee (at issue)
Emerson Electric Co.
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.