Granted Patent
Utility
US 4,840,040 · App. 07/247,543
Island type refrigeration display cabinet
Inventor:
Kwok Kwong Fung
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Sep 22, 1988
Inventor
Kwok Kwong Fung
Assignee (at issue)
American Standard 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.