IP Library › Granted Patent US 5,698,736
Granted Patent Utility
US 5,698,736 · App. 08/792,311

High temperature, catalytic Friedel-Crafts synthesis of benzene phosphorus dichloride

Inventors: Jeffrey E. Telschow, Alan Abramson
Patented Case View Patent ↗
Granted: Dec 16, 1997 Filed: Jan 31, 1997
Inventors
Jeffrey E. Telschow
Alan Abramson
Assignee (at issue)
AKZO NOBEL N.V.

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 5,698,736
App. No.
08/792,311
Filed
1997-01-31
Granted
1997-12-16
Kind
A