IP Library › Granted Patent US 4,426,276
Granted Patent Utility
US 4,426,276 · App. 06/486,802

Combined fluid catalytic cracking and hydrocracking process

Inventors: Robert R. Dean, Jean-Louis Mauleon
Patented Case View Patent ↗
Granted: Jan 17, 1984 Filed: Apr 20, 1983
Inventors
Robert R. Dean
Jean-Louis Mauleon

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 4,426,276
App. No.
06/486,802
Filed
1983-04-20
Granted
1984-01-17
Kind
A