Granted Patent
Utility
US 5,212,702 · App. 07/857,352
Semiconductor surface emitting laser having reduced threshold voltage and enhanced optical output
Inventor:
Kent D. Choquette
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Mar 25, 1992
Inventor
Kent D. Choquette
Assignee (at issue)
AT&T Bell Laboratories
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.