The opinion in support of the decision being entered today was not
written for publication and is not binding precedent of the Board.
Paper No. 24
UNITED STATES PATENT AND TRADEMARK OFFICE
____________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
____________
Ex parte JURGEN MOHR and WOLF-DIETER BALZER
____________
Appeal No. 1998-2040
Application No. 08/420,077
____________
HEARD: March 13, 2001
____________
Before, JOHN D. SMITH, KRATZ and TIMM, Administrative Patent
Judges.
KRATZ, Administrative Patent Judge.
DECISION ON APPEAL
This is a decision on appeal from the examiner's refusal
to allow claims 1 and 3-6 as amended after final rejection.
No other claims are pending in this application.
BACKGROUND
The appellants' invention relates to a method of
recovering glycol from used antifreeze employing an alkali
metal hydroxide additive and an organic solvent in the
recovery process which includes a distillation step.
According to appellants (specification, page 4), the alkali
Page: 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007