Granted Patent
Utility
US 5,835,656 · App. 08/902,286
Coated optical fiber
Inventors:
Kazumasa Oishi, Nobuhiro Akasaka, Tatsuya Kakuta, Yasuo Matsuda
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Jul 29, 1997
Inventors
Kazumasa Oishi
Nobuhiro Akasaka
Tatsuya Kakuta
Yasuo Matsuda
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.