Granted Patent
Utility
US 6,140,417 · App. 09/203,333
Vinyl chloride resin composition
Inventors:
Yasushi Nakanishi, Mamoru Kadokura, Karin Janssen, Akira Takaki, Yasuhiro Miki
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Dec 2, 1998
Inventors
Yasushi Nakanishi
Mamoru Kadokura
Karin Janssen
Akira Takaki
Yasuhiro Miki
Assignees (at issue)
KANEKA CORPORATION
KANEKA BELGIUM NV
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.