Granted Patent
Utility
US 6,111,262 · App. 09/182,794
Method for measuring a diameter of a crystal
Inventor:
Keiichi Takanashi
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Oct 30, 1998
Inventor
Keiichi Takanashi
Assignee (at issue)
SUMITOMO METAL INDUSTRIES, LTD.
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.