Granted Patent
Utility
US 4,346,564 · App. 06/135,546
Defrosting control apparatus
Inventors:
Mario Gemma, Burghard Baehr
Patented Case
View Patent ↗
Granted: Aug 31, 1982
Filed: Mar 31, 1980
Inventors
Mario Gemma
Burghard Baehr
Assignee (at issue)
RANCO CO., Ltd.
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.