Granted Patent
Utility
US 6,509,422 · App. 09/381,275
Fluororesin composition
Inventors:
Masako Nagashima, Takeshi Eriguchi, Yuriko Kaida, Hiroki Kamiya, Masao Umino, Masataka Yokota
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Sep 20, 1999
Inventors
Masako Nagashima
Takeshi Eriguchi
Yuriko Kaida
Hiroki Kamiya
Masao Umino
Masataka Yokota
Assignee (at issue)
ASAHI GLASS CO., 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.