Granted Patent
Utility
US 4,300,621 · App. 06/145,197
Continous casting method with vaporized coolant
Inventor:
Robert E. Wilson
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Apr 29, 1980
Inventor
Robert E. Wilson
Assignee (at issue)
Timex 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.