Granted Patent
Utility
US 4,924,470 · App. 07/384,626
Laser diode control apparatus
Inventor:
Gordon W. Ries
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Jul 25, 1989
Inventor
Gordon W. Ries
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.