Granted Patent
Utility
US 6,760,098 · App. 09/918,528
Refractometer
Inventor:
Harri Salo
Patented Case
View Patent ↗
Granted: Jul 6, 2004
Filed: Aug 1, 2001
Inventor
Harri Salo
Assignee (at issue)
JANESKO OY
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.