Granted Patent
Utility
US 6,482,263 · App. 09/684,266
Heat shield assembly for crystal pulling apparatus
Inventors:
Lee William Ferry, Steven L. Kimbel, Kirk D. McCallum, Richard G. Schrenker
Patented Case
View Patent ↗
Granted: Nov 19, 2002
Filed: Oct 6, 2000
Inventors
Lee William Ferry
Steven L. Kimbel
Kirk D. McCallum
Richard G. Schrenker
Assignee (at issue)
MEMC Electronic Materials, 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.