Granted Patent
Utility
US 4,283,464 · App. 06/037,236
Prefabricated composite metallic heat-transmitting plate unit
Inventor:
Norman Hascoe
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: May 8, 1979
Inventor
Norman Hascoe
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.