Granted Patent
Utility
US 6,579,362 · App. 09/815,508
Heat shield assembly for crystal puller
Inventors:
Lee William Ferry, Richard G. Schrenker, Mohsen Banan
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Mar 23, 2001
Inventors
Lee William Ferry
Richard G. Schrenker
Mohsen Banan
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.