IP Library › Granted Patent US 5,180,767
Granted Patent Utility
US 5,180,767 · App. 07/888,448

Flame retardant cyclic olefinic polymer composition

Inventors: Hideki Sakai, Yohzoh Yamamoto
Patented Case View Patent ↗
Granted: Jan 19, 1993 Filed: May 28, 1992
Inventors
Hideki Sakai
Yohzoh Yamamoto
Assignee (at issue)
Mitsui Petrochemical 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 5,180,767
App. No.
07/888,448
Filed
1992-05-28
Granted
1993-01-19
Kind
A