Granted Patent
Utility
US 5,840,116 · App. 08/933,987
Method of growing crystals
Inventor:
Takayuki Kubo
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Sep 19, 1997
Inventor
Takayuki Kubo
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.