IP Library › Granted Patent US 4,666,649
Granted Patent Utility
US 4,666,649 · App. 06/809,555

Method of and apparatus for extruding thermoplastic resin

Inventors: Toyokazu Takubo, Atsushi Fujii
Patented Case View Patent ↗
Granted: May 19, 1987 Filed: Dec 16, 1985
Inventors
Toyokazu Takubo
Atsushi Fujii
Assignee (at issue)
Idemitsu Petrochemical Co., Ltd.

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Quick Facts
Patent No.
US 4,666,649
App. No.
06/809,555
Filed
1985-12-16
Granted
1987-05-19
Kind
A