Granted Patent
Utility
US 5,430,757 · App. 08/112,432
Method and apparatus for the semi-continuous melting and discharging of ceramic material in an induction melting furnace with sintering crust crucible
Inventors:
Dieter Binder, Peter Kleinschmit, Gerhard Birtigh, Klaus Zetzmann
Patented Case
View Patent ↗
Granted: Jul 4, 1995
Filed: Aug 26, 1993
Inventors
Dieter Binder
Peter Kleinschmit
Gerhard Birtigh
Klaus Zetzmann
Assignee (at issue)
Degussa AG
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.