IP Library › Granted Patent US 4,226,964
Granted Patent Utility
US 4,226,964 · App. 06/006,386

Process for polymerizing olefin

Inventors: Toru Tanaka, Shigeaki Okano, Eiji Tanaka
Patented Case View Patent ↗
Granted: Oct 7, 1980 Filed: Jan 25, 1979
Inventors
Toru Tanaka
Shigeaki Okano
Eiji Tanaka
Assignee (at issue)
Mitsubishi Chemical Industries, Ltd.

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,226,964
App. No.
06/006,386
Filed
1979-01-25
Granted
1980-10-07
Kind
A