IP Library › Granted Patent US 4,240,898
Granted Patent Utility
US 4,240,898 · App. 05/968,771

Process for producing high quality pitch

Inventor: Shimpei Gomi
Patented Case View Patent ↗
Granted: Dec 23, 1980 Filed: Dec 12, 1978
Inventor
Shimpei Gomi
Assignee (at issue)
Union Carbide Corporation

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Quick Facts
Patent No.
US 4,240,898
App. No.
05/968,771
Filed
1978-12-12
Granted
1980-12-23
Kind
A