Granted Patent
Utility
US 5,919,306 · App. 08/963,064
Silicon melting crucible
Inventor:
Kaoru Takemura
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Nov 3, 1997
Inventor
Kaoru Takemura
Assignee (at issue)
Sumitomo Sitix 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.