Granted Patent
Utility
US 5,730,799 · App. 08/545,777
Device for producing single crystals
Inventor:
Makoto Ito
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: Nov 27, 1995
Inventor
Makoto Ito
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.