Granted Patent
Utility
US 4,290,476 · App. 06/112,006
Nozzle geometry for planar flow casting of metal ribbon
Inventors:
Robert W. Smith, Naim S. Hemmat, John R. Bedell, Sheldon Kavesh, Seymour Draizen
Patented Case
View Patent ↗
Granted: Sep 22, 1981
Filed: Jan 14, 1980
Inventors
Robert W. Smith
Naim S. Hemmat
John R. Bedell
Sheldon Kavesh
Seymour Draizen
Assignee (at issue)
Allied Chemical 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.