IP Library › Granted Patent US 4,673,439
Granted Patent Utility
US 4,673,439 · App. 06/839,388

Sizing agent for paper making

Inventors: Yoshio Takahashi, Shigeto Hatanaka
Patented Case View Patent ↗
Granted: Jun 16, 1987 Filed: Mar 14, 1986
Inventors
Yoshio Takahashi
Shigeto Hatanaka
Assignee (at issue)
Mitsubishi Oil Co., Ltd.

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Quick Facts
Patent No.
US 4,673,439
App. No.
06/839,388
Filed
1986-03-14
Granted
1987-06-16
Kind
A