IP Library › Granted Patent US 4,868,288
Granted Patent Utility
US 4,868,288 · App. 07/257,152

Process for preparing metallocene complexes

Inventor: Kurt Meier
Patented Case View Patent ↗
Granted: Sep 19, 1989 Filed: Sep 30, 1988
Inventor
Kurt Meier
Assignee (at issue)
Ciba-Geigy

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 4,868,288
App. No.
07/257,152
Filed
1988-09-30
Granted
1989-09-19
Kind
A