Granted Patent
Utility
US 5,426,657 · App. 08/250,311
Article comprising a focusing semiconductor laser
Inventor:
Daryoosh Vakhshoori
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: May 27, 1994
Inventor
Daryoosh Vakhshoori
Assignee (at issue)
AT&T CORP.
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.