Granted Patent
Utility
US 6,469,079 · App. 09/437,831
Chlorinated vinyl chloride resin composition
Inventors:
Toshio Okuhara, Tadashi Tadokoro, Hiroaki Shiota, Takeyuki Suzuki, Minoru Isshiki
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Nov 10, 1999
Inventors
Toshio Okuhara
Tadashi Tadokoro
Hiroaki Shiota
Takeyuki Suzuki
Minoru Isshiki
Assignee (at issue)
KANEKA 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.