Granted Patent
Utility
US 4,803,689 · App. 07/095,711
Semiconductor laser module
Inventor:
Naoki Shibanuma
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Sep 14, 1987
Inventor
Naoki Shibanuma
Assignee (at issue)
NEC CORPORATION
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.