Granted Patent
Utility
US 4,487,249 · App. 06/434,773
Method and apparatus for adjusting the size of a continuous casting mold
Inventor:
Wilmer C. Wrhen
Patented Case
View Patent ↗
Granted: Dec 11, 1984
Filed: Oct 18, 1982
Inventor
Wilmer C. Wrhen
Assignee (at issue)
United States Steel 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.