Granted Patent
Utility
US 4,299,095 · App. 06/066,349
Defrost system
Inventor:
A. Victor Cassarino
Patented Case
View Patent ↗
Granted: Nov 10, 1981
Filed: Aug 13, 1979
Inventor
A. Victor Cassarino
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
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.