Granted Patent
Utility
US 4,165,026 · App. 05/889,843
Tundish with expendable lining and easily removable nozzle
Inventors:
Ian J. Hazlehurst, David C. Willard
Patented Case
View Patent ↗
Granted: Aug 21, 1979
Filed: Mar 24, 1978
Inventors
Ian J. Hazlehurst
David C. Willard
Assignee (at issue)
Foseco Trading A.G.
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.