Granted Patent
Utility
US 4,807,693 · App. 06/940,666
Chill roll casting of metal strip
Inventors:
Venkatasubramanian Laxmanan, Santosh K. Das, Chin-Fong Chang
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Dec 11, 1986
Inventors
Venkatasubramanian Laxmanan
Santosh K. Das
Chin-Fong Chang
Assignee (at issue)
AlliedSignal, Inc.
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.