IP Library › Granted Patent US 4,810,472
Granted Patent Utility
US 4,810,472 · App. 07/029,236

Apparatus for steam reforming hydrocarbons

Inventors: Sydney P. S. Andrew, Ralph J. Doy, Antony P. J. Limbach
Patented Case View Patent ↗
Granted: Mar 7, 1989 Filed: Mar 23, 1987
Inventors
Sydney P. S. Andrew
Ralph J. Doy
Antony P. J. Limbach
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED

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 4,810,472
App. No.
07/029,236
Filed
1987-03-23
Granted
1989-03-07
Kind
A