IP Library › Granted Patent US 5,522,971
Granted Patent Utility
US 5,522,971 · App. 08/244,680

Dry neutralization of olefinically reactive organic liquid phases

Inventors: Wolfgang Ritter, Stefanie Ortanderl
Patented Case View Patent ↗
Granted: Jun 4, 1996 Filed: Jun 7, 1994
Inventors
Wolfgang Ritter
Stefanie Ortanderl
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien

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 5,522,971
App. No.
08/244,680
Filed
1994-06-07
Granted
1996-06-04
Kind
A