Granted Patent
Utility
US 6,512,608 · App. 09/736,176
Optical device
Inventor:
Minoru Ohyama
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Dec 15, 2000
Inventor
Minoru Ohyama
Assignee (at issue)
Victor Company of Japan, 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.