Granted Patent
Utility
US 4,602,668 · App. 06/613,631
Regulating distance between nozzle and caterpillar type mold in process of and apparatus for continuous casting
Inventor:
Martin Bolliger
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: May 24, 1984
Inventor
Martin Bolliger
Assignee (at issue)
Swiss Aluminium 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.