Granted Patent
Utility
US 5,558,712 · App. 08/334,753
Contoured inner after-heater shield for reducing stress in growing crystalline bodies
Inventor:
Juris P. Kalejs
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Nov 4, 1994
Inventor
Juris P. Kalejs
Assignee (at issue)
ASE Americas, 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.