Granted Patent
Utility
US 4,151,723 · App. 05/816,091
Refrigeration system control method and apparatus
Inventor:
Edward B. Gardner
Patented Case
View Patent ↗
Granted: May 1, 1979
Filed: Jul 15, 1977
Inventor
Edward B. Gardner
Assignee (at issue)
Emhart Industries, 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.