Granted Patent
Utility
US 4,255,863 · App. 06/140,177
Continuous casting mold taper gage
Inventor:
Louis G. Lazzaretti
Patented Case
View Patent ↗
Granted: Mar 17, 1981
Filed: Apr 14, 1980
Inventor
Louis G. Lazzaretti
Assignee (at issue)
Gladwin 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.