In re Crecelius

This is an appeal from a decision of the Board of Appeals of the United States' Patent Office, affirming a decision of the examiner, rejecting claims numbered 34 to 37, inclusive, 40 to 45, inclusive, and 55 of appellant’s application for patent. All of the claims on appeal were rejected upon cited prior art; certain claims have been allowed.

Both process and article claims are involved. Claims 34, 35, 36, 37, 40.41 and 55 are illustrative and read as follows:

34. A composition of matter comprising a chloride which upon heating decomposes below the fusion temperature of iron sulphide, together…