Christmann v. Derby

87 F.2d 502, 24 C.C.P.A. 890, 1937 CCPA LEXIS 50
CourtCourt of Customs and Patent Appeals
DecidedFebruary 1, 1937
DocketNo. 3721
StatusPublished

This text of 87 F.2d 502 (Christmann v. Derby) is published on Counsel Stack Legal Research, covering Court of Customs and Patent Appeals primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Christmann v. Derby, 87 F.2d 502, 24 C.C.P.A. 890, 1937 CCPA LEXIS 50 (ccpa 1937).

Opinion

Lenroot, Judge,

delivered the opinion of the court:

This is an interference proceeding wherein the Board of Appeals of the United States Patent Office affirmed a decision of the Ex-» aminer of Interferences awarding priority of invention upon the three counts in issue to appellees. Appellant has brought before us for review the decision of the Board of Appeals.

The interference involves an application filed by appellees on February 24,1931, Serial No. 518,019, stated in the application to be a division- of “our copending application Ser. No. 96,061, filed March 19, 1926,” and an application filed by appellant on November 22, 1927, Serial No. 235,121.

The counts involved read as follows:

1. An agent for use in flotation, comprising the reaction product of an alcohol, an aromatic amino compound and phosphorus pentasulphide.
2. An agent for use in flotation, comprising the reaction product of an alcohol, an aromatic amino compound, sulphur and phosphorus.
[891]*8913. The process of concentrating ores by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of the reaction product of an alcohol, an amino compound and phosphorus peiitasulphide.

The invention relates to improvements in ore flotation, and it will be observed that the first two counts embrace products and the third count embraces a process of concentrating ores by froth flotation.

In declaring the interference the examiner held that appellees were entitled to the filing date of their original March 19, 1926 application, No. 96,061, for conception and reduction to practice.

When appellant’s preliminary statement was opened it was found that he alleged conception and reduction to practice of the invention on or about May 17, 1927. This cíate being subsequent to the filing date of appellees’ earlier application, the Examiner of Interferences issued an order to appellant to show cause why judgment on the record should not be entered against him. In response to this order appellant moved to dissolve the interference upon the ground that appellees did not disclose the invention in issue in their application in interference, and also filed a motion to shift the burden of proof upon the ground that (1) the original application of appellees, No. 96,061, did not disclose the invention in issue, and (2) that there was a lack of continuity in the subject matter of appellees’ application in interference and their original application.

Both motions were decided adversely to appellant by the examiner, and judgment upon the record was rendered by the Examiner of Interferences awarding priority of invention to appellees upon all the counts involved.

Opon appeal to the Board of Appeals, apparently the only ground urged by appellant for reversing the decision of the Examiner of Interferences was the contention that the original application of appellees, No. 96,061, did not support the counts in issue. The board held that it did support the counts and affirmed the decision of the Examiner of Interferences. From such decision this appeal was taken, and the only question presented to us is whether or not the original application of appellees, No. 96,061, discloses the invention embraced in the counts before us.

In said original application we find the following:

More particularly, our present invention embraces the products of reaction of phosphorus sulfides (such as the trisulfide, P=S3, or pentasulfide, P2S5), with inorganic, organic or both inorganic and organic substances and compounds, and the use of such substances, as well as the phosphorus sulfides themselves, in ore flotation. Although we do not limit ourselves to these “phosphorus nuclear compounds/’ they are particularly emphasized because the phosphorus sulfides are easily prepared, and readily react with a large variety of substances [892]*892both inorganic, and organic, thus iorming excellent, starting materials for the production,of “nuclear phosphorus compounds” containing sulfur.
We give the following classification of some of the reactions that yield “nuclear phosphorus compounds” which can conveniently be employed in ore flotation in accordance with the present invention, namely, the reaction of a phosphorus sulfide such as phosphorus pentasulfide, P»Ss, with (a) phenolic compounds, such as cax-bolic acid or its homologues; or the alkali salts of phenols such as potassium plienolate or sodium cresylate or the like; (b) the alcohols, such as methyl or ethyl alcohol; or the alkali salts of alcohols such as sodium ethylate; (c) the mercaptols, for example, ethyl mercaptol; or the alkali salts of mercap-tol, such as the sodium or potassium salts of ethyl mercaptol; (d) the aromatic mercaptols, and their alkali salts, for example, phenyl mercaptol; (e) aliphatic and aromatic bases, including such substances as ethylamine, aniline or its homologues or other aromatic bases, such as pyridine, quinolin, etc.; ’ (f) the nitriles, for example benzontrile; (g) hydrocarbonaceous substances, for exam-, pie, naphthalene, phenanthrene, coal tar oils, and vegetable oils and (g) inorganic compounds such as the alkali hydroxides, ammonium hydroxide, the alkali sulfides, the alkali cyanides, the halogens, etc.

Tlie specification proceeds to give five examples of pbospliosulfo compounds, in four of which phosphorus pentasulfide is reacted with elements of a single group of the groups classified in the specification as (a), (b), (c), (d), (e), (f), and (g). In the fifth example a reaction is set out between pliosporus pentasulfide and naphthalene [named in group (g)] and sodium alcoholates [named in group (b)] or jolienolic compounds [named in group (a)]. No example is given of a reaction between phosphorus pentasulfide and alcohol plus an amino compound, the last element being named in group (e).

The examiner held that the counts before us did not require a reaction between the alcohol and the other elements named in each of the counts. In his decision he stated:

The specification of the earlier Derby et al. application at no point states ■definitely in precise words that there may be used the reaction product of an alcohol, an amine, and phosphorus pentasulphide. The failure to definitely state in exact words does not prevent the application being sufficient to teach one skilled in the flotation art that such a compound is useful for flotation proposes.
These claims are not specific in nature. The counts call for the rise in flotation of the product of the reaction, conducted under any conditions, of any alcohol, and of any amine, with phosphorus pentasulfide. The nature of the product is not defined, it is not essential that there be the result of the mutual reaction of the alcohol and amine with phosphorus pentasulfide. The alcohol may serve purely as a solvent. As illustrated in the Wigton patent the alcohol is used purely as a solvent for the reacting amino compound and the phosphorus pentasulfide.

The Board of Appeals did not agree with the examiner in this statement and held that the counts are not satisfied by the presence of alcohol purely as a solvent. We agree with the board in this conclusion. However, we find in the decision of the board the following:

[893]

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Bluebook (online)
87 F.2d 502, 24 C.C.P.A. 890, 1937 CCPA LEXIS 50, Counsel Stack Legal Research, https://law.counselstack.com/opinion/christmann-v-derby-ccpa-1937.