Granted Patent
Utility
US 4,938,034 · App. 07/346,858
Opened front refrigerated display case
Inventors:
Ronald R. Rosanio, George E. Wallace
Patented Case
View Patent ↗
Granted: Jul 3, 1990
Filed: May 3, 1989
Inventors
Ronald R. Rosanio
George E. Wallace
Assignee (at issue)
Hill Refrigeration Corporation
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.