Krebs v. Melicharek

97 F.2d 477, 25 C.C.P.A. 1362, 1938 CCPA LEXIS 148
CourtCourt of Customs and Patent Appeals
DecidedJune 27, 1938
DocketNo. 3981
StatusPublished
Cited by5 cases

This text of 97 F.2d 477 (Krebs v. Melicharek) 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
Krebs v. Melicharek, 97 F.2d 477, 25 C.C.P.A. 1362, 1938 CCPA LEXIS 148 (ccpa 1938).

Opinion

Jacksow, Judge,

delivered the opinion of the court:

This is an appeal in an interference proceeding from a decision of the Board of Appeals of the United States Patent Office affirming that of the Examiner of Interferences which awarded priority of invention of the subject matter in issue to appellee, the senior party.

[1363]*1363Appellants filed an application for a patent, serial No. 455,399, for “Multi-frequency Signaling Apparatus,” on May 24, 1930. Appellee,, on February 13, 1930, filed an application for a patent, serial No. 428,072, for “Coil Selector.”

An interference was declared involving the two said applications on December 6, 1933, and the appeal is before us on 7 counts of a redeclaration of interference in accordance with a decision of the Examiner of Interferences dated April 22,1935.

Counts 1 and 5 are representative and read as follows:

1. In a high frequency electrical system, a rotatable carrier, a multiplicity of inductance units each having different frequency eharaeferistics disposed on-said rotatable carrier, a high frequency electrical circuit terminating in fixed contacts adjacent said rotatable carrier, a variable electrical capacity in said' high frequency electrical circuit, contacts carried by said rotatable carrier and connected with the inductance units thereon and adapted to establish connection with the fixed contacts adjacent said rotatable carrier, and a circuit maker and breaker including a stationary contact and a movable contact, means carried by the rotatable carrier to affect movement of the movable contact into and out of engagement with the stationary contact as the carrier is rotated for modifying the effective capacity in said high frequency electrical circuit in accordance with the value of the inductance unit which is selectively connected with said high frequency electrical circuit.
5. Frequency changing apparatus comprising a rotatable carrier, inductance elements of different frequency characteristics mounted upon said carrier, a high frequency electrical circuit terminating in contacts adjacent said carrier, contacts connected with the inductance elements on said carrier and connectible-with the aforesaid contacts when said carrier is rotated to selected positions for-including a particular inductance in said high frequency electrical circuit, an electrical capacity divided into two separate portions, one portion of which is; permanently connected with said high frequency electrical circuit, a cam operated by the movement of said carrier for effectively connecting the several' portions of said capacity in parallel in said high frequency electrical circuit when.a selected inductance element is connected in said high frequency electrical' circuit.

The subject matter is described by the Examiner of Interferences, as follows:

The subject matter of this interference relates to tuning apparatus for high: frequency electrical circuits designed to cover a wide range of frequencies. A plurality of inductance units of selected values are mounted on a rotatable member and have their lead wires connected to a series of contact points set in the-member. These contact points are adapted to be brought into contact with-wiper arms connected with the proper portions of the associated electrical circuits. The apparatus includes two capacities, one of which is normally included, in the high frequency electrical circuit while the second may be connected or disconnected according to the position of the rotatable member, thereby varying-ihe value of the capacity in accordance with the particular inductance which is. placed in the circuit. •* * *

In their preliminary statement, appellants allege that they conceived the invention, made the first drawings thereof, and disclosed it; [1364]*1364to others on or about August 29,1929; that on or about September 20, 1929, they made their first written description, and reduced the invention to practice on or about October 1, 1929. Testimony was taken to support these allegations.

Appellee filed no preliminary statement and took no testimony and accordingly was restricted to his filing date for conception and constructive reduction to practice.

While it appears that appellee filed a brief before the Examiner of Interferences subsequent to the taking of testimony, there has been no further appearance on his behalf.

Appellants were civilian employees in the radio test shop of the United States Navy Yard, at Washington, D. C., during the year 1929. Their testimony and records amply disclose that they had conceived and communicated to others the invention covered by the counts in every particular, as alleged in their preliminary statement.

The Examiner of Interferences properly held that they are entitled to September 20, 1929, for conception of the invention in issue. The said examiner, however, after considering their proof, held that it failed to show actual reduction to practice prior to the filing date of appellee, and that they had made no showing of diligence from a time just prior to the filing date of appellee up to the time of their own filing date.

Appellants’ evidence offered in proof of reduction to practice is ■an actual radio set which was made in October 1929. The Examiner of Interferences said that it closely conformed to the original tracing, a copy of which is included in Exhibit 1, which tracing unquestionably discloses the elements contained in the counts.

Concerning this device as evidence of actual reduction to practice, appellants earnestly contend that it supports counts 3 and 4, ■and in this respect state in their brief as follows:

* * * counts S and 4 define the ajiparatus for high frequency electrical 'circuits designed to cover a wide range of frequencies in which a plurality of inductance units of selected values are mounted on a rotatable member and have their lead wires connected to a series of contact points carried by the member and adapted to be brought into contact with wiper arms connected through branch circuits to a tuning condenser, and associated high frequency ■electrical circuits including vacuum tube amplifiers.

With respect to counts 1, 2, 5, 6, and 7, all of the remaining counts, appellants claim that they “restate the inventions of counts 3 and 4 with the addition of a separate capacity which is connected into the circuit together with certain of the inductances by means of a cam actuated by the rotatable member.”

Appellants state that the only feature of the said radio set which differs from counts 1, 2, 5, 6, and 7 is that the exhibit contains a manually operated switch instead of a cam.

[1365]*1365The fact that the device was successfully operated we do not think is proof that it supports any of the counts. There is nothing in the record to show that by reason of successful operation it of necessity must be considered as supporting the counts. The tracing in Exhibit 1 provides for a cam, but the radio set in evidence does not have a cam. In holding that the structure in evidence does not support the counts, the Examiner of Interferences stated as follows:

The actual radio set in which the invention is alleged to have been incorporated in October 1920 has been placed in evidence as Exhibit 5. This set includes a turntable member on which is mounted a series of inductance coils-of various values.

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97 F.2d 477, 25 C.C.P.A. 1362, 1938 CCPA LEXIS 148, Counsel Stack Legal Research, https://law.counselstack.com/opinion/krebs-v-melicharek-ccpa-1938.