Granted Patent
Utility
US 4,511,208 · App. 06/439,547
Optical communication system
Inventors:
Takeshi Ozeki, Toshifumi Tamura
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: Nov 5, 1982
Inventors
Takeshi Ozeki
Toshifumi Tamura
Assignee (at issue)
Tokyo Shibaura Denki Kabushiki Kaisha
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.