Application of Jan Rosicky

MARTIN, Judge.

This appeal is from a decision of the Patent Office Board of Appeals affirming the final rejection of claims 1, 5, 11 to 15, 17, 18 and 28 to 36 in application Serial No. 402,590 filed January 6, 1954, entitled “Xanthene Derivatives and Process of Making Same.” Several claims directed to more limited processes have been allowed.

The following claims are considered to be representative:

“1. In a process of producing xanthene derivatives having a basic side chain in 9-position, the steps comprising contacting xanthene in a non-polar organic solvent with a sodium-transferring agent…