Granted Patent
Utility
US 6,015,461 · App. 08/929,118
Seed crystal holders, for pulling a single crystal
Inventor:
Teruo Izumi
Patented Case
View Patent ↗
Granted: Jan 18, 2000
Filed: Sep 15, 1997
Inventor
Teruo Izumi
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.