Granted Patent
Utility
US 6,606,441 · App. 09/891,258
Plastic optical fiber, optical fiber cable and optical transmission device
Inventors:
Kikue Irie, Toshinori Sumi, Tomonari Yoshimura, Yoshihiro Uozu, Yahei Koyamada, Shiori Miyake
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Jun 27, 2001
Inventors
Kikue Irie
Toshinori Sumi
Tomonari Yoshimura
Yoshihiro Uozu
Yahei Koyamada
Shiori Miyake
Assignee (at issue)
MITSUBISHI ELECTRIC 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.