Granted Patent
Utility
US 5,307,183 · App. 07/975,303
Apparatus and method for fabricating a curved grating in a surface emitting distributed feedback semiconductor laser diode device
Inventor:
Steven H. Macomber
Patented Case
View Patent ↗
Granted: Apr 26, 1994
Filed: Nov 12, 1992
Inventor
Steven H. Macomber
Assignee (at issue)
Hughes Aircraft Company
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.