Granted Patent
Utility
US 4,021,213 · App. 05/607,182
Food storage refrigeration cabinet having optional fast chill cycle
Inventors:
Graham B. Neidhardt, George Persak, Jr.
Patented Case
View Patent ↗
Granted: May 3, 1977
Filed: Aug 25, 1975
Inventors
Graham B. Neidhardt
George Persak, Jr.
Assignee (at issue)
MCGRAW-EDISON COMPANY
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.