In re Herthel

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the action of the Primary-Examiner in rejecting claims 1, 2, 3, and 4 in appellant’s application for a patent directed to a method for “certain new and useful improvements in lubricating oils” particularly adapted for producing light viscous oils from heavy viscous oils.

There were no claims allowed and appellant petitioned the board requesting a reconsideration of its decision. The petition was granted and the grounds of rejection were reconsidered, but the board declined to make any…