Stewart v. Robinson

55 F.2d 998, 19 C.C.P.A. 953, 1932 CCPA LEXIS 63
CourtCourt of Customs and Patent Appeals
DecidedFebruary 8, 1932
DocketNo. 2851
StatusPublished
Cited by2 cases

This text of 55 F.2d 998 (Stewart v. Robinson) 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
Stewart v. Robinson, 55 F.2d 998, 19 C.C.P.A. 953, 1932 CCPA LEXIS 63 (ccpa 1932).

Opinion

BlaND, Judge,

delivered .the opinion of the court:

In this appeal we review the action of the Board of Appeals of the-United States Patent Office, in reversing the decision of the examiner of interferences, and in awarding priority of invention in six counts, of an interference to the appellee, Robinson.

The subject matter of this interference is an attachment to a machine for the circular lmitting of stockings which have tapered high, splices. The tapered high splice is the familiar pointed dark area seen just above the heel on stockings. Prior to 1922 such reinforcements were commercially made only in full fashioned or flat knit stockings. The parties to this interference invented attachments to be placed on the ordinary stocking knitting machine whereby the high splice might be knit into circular knit stockings. The full fashioned or flat knit stocking which first contained the high splice was known as the “ Pointex ” stocking, and the high splice which had a pointed top was made by sewing the two edges of the flat knit stocking material together so as to form a triangle on the back of the stocking with a seam running in the center thereof from the point of the triangle downward.

The counts of the interference are illustrated by count 1 which follows:

1. In combination with a circular knitting stocking machine, means for intermittently raising and lowering the high splicing finger of the machine and means cooperating with said means for modifying the action of said means to cause said finger to be in operation for a successively increasing period to thereby knit the high splice triangular in configuration.

The application of Robinson was filed May 16, 1921, and that of Stewart was filed August I, 1923.

The examiner of interferences found that Stewart reduced the invention to practice not later than May 23, 1911, by placing his; attachment (Stewart’s Exhibit 6) on a knitting machine and sue-[955]*955cessfully operating it to produce a stocking with a tapered high splice; He gave Eobinson a date not later than November, 1920, as a date of conception, and February, 1921, as a date of reduction to practice.

The Board of Appeals did not agree with the finding of the examiner of interferences that Stewart had conceived and reduced to practice the subject matter of the counts in 1917, and held that Stewart’s activity at that time amounted to an abandoned experiment only. The board also held that Stewart could not prevail because he was the last to reduce to practice and was not diligent at the time Eobinson entered the field nor for a long time after Eobinson had reduced to practice.

The examiner of interferences, having-found that Stewart’s Exhibit 6 showed evidence of a completed invention, held that he was entitled to priority, although he did not file his application until nearly five years after he had constructed and operated the machine. The examiner of interferences held that the doctrine of Mason v. Hepburn, 13 App. D. C. 86, did not apply because appellant and those associated with him did not “ purposefully ” suppress the invention from public knowledge and because there was no satisfactory proof that Stewart’s later activities resulted from knowledge of the work done by Eobinson.

The examiner of interferences and the Board of Appeals discussed the evidence in great detail and we will not attempt to state all the facts which might have bearing upon the questions involved. The record shows that Stewart, in the spring of 1917, recognizing the desirability of having a machine which would produce the pointed high splice on a circular knit stocking, set about to produce such a machine. His attachment, which was composed of cams and levers that operated a knitting finger which brought about, at a predetermined time, the knitting of a splice more particularly described hereinafter, was in operation in May of 1917.

We think the proof conclusively shows that this machine would not knit the high splice in such form as was desired or regarded as commercialy suitable by Stewart and his company. The record shows that it produced a splice with the top part of the triangle flat. The width of the flat top depended on the size thread used. Stewart admits the width of the flat top was three-quarters of an inch. There is considerable evidence by Stewart’s own witnesses that the machine was not so perfected but that, when this point was reached in knitting the high splice, the necessary point for filling out the pointed triangle would appear on the front part of the stocking just above the instep. It is obvious that this splice was not satisfactory and that a sharper pointed splice was desired. Some of the wit[956]*956nesses of appellant testified that stockings were made on this machine and displayed in their plant. These stockings, if so made and displayed, were not introduced in evidence and we are not satisfied that the machine produced a stocking which had the sharp pointed high splice which was desired.

Stewart in 1917 took the attachment off the machine and put it into or on a junk box or tool box underneath his desk where odds and ends were placed. It remained there for about five years. There is no record of anyone having seen this attachment during that period of time. Certain letters between certain interested parties, throwing some light on the question of market conditions and on the question of Stewart’s being stimulated into activity were introduced, but we do not think it necessary to further refer to them.

Stewart’s contention here is that he had successfully conceived and reduced the invention to practice in 1917 and that his delay in getting into the Patent Office should not be regarded as raising the presumption that his early activities amounted to an abandoned experiment, because he claims that the record shows abundant excuse for the long delay. He points to the fact that there was no market for the attachment or for the goods that it made, and that it was desirable to bring out in the same machine a lace formation attachment upon which he was then working, and also that at that time there was a depression following the World War .which affected the market of the product of the machine, and it is furthermore suggested that there was no little uncertainty as to the existing patent situation in this particular art.

Late in 1922 or early in 1923, after Stewart had “ resurrected ” his device, he constructed and placed upon the same a pivoted filler lever, spring, and pin, and when so improved the same would make the sharp-pointed high splice which he desired. The new device was introduced in evidence as Stewart’s Exhibit No. 11, but the date of its construction was long after Eobinson had his machine in successful operation.

The record shows that between 1917 and 1922 Stewart, and the company with which he was associated, made applications for and secured patents on several inventions relating to the stocking-making industry.

Concerning Stewart’s “ resurrection ” of his high-splice attachment, and concerning further steps of the parties, the board said (record citations omitted in quotation) :

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Bluebook (online)
55 F.2d 998, 19 C.C.P.A. 953, 1932 CCPA LEXIS 63, Counsel Stack Legal Research, https://law.counselstack.com/opinion/stewart-v-robinson-ccpa-1932.