Application of Franz

190 F.2d 86, 38 C.C.P.A. 1206
CourtCourt of Customs and Patent Appeals
DecidedJune 26, 1951
Docket5802
StatusPublished
Cited by4 cases

This text of 190 F.2d 86 (Application of Franz) 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
Application of Franz, 190 F.2d 86, 38 C.C.P.A. 1206 (ccpa 1951).

Opinion

WORLEY, Judge.

In this appeal, the record discloses that the Primary Examiner of the United States Patent Office rejected as unpatentable over the prior art claims Nos. 1 to 8, inclusive, those being all of the claims in appellants’ application for a patent relating to luminescent targets. On appeal, the Board of Appeals affirmed the decision of the examiner as to claims 1 to 4, inclusive, and claims 7 and 8, ibut allowed claims 5 and 6. From that decision, appellants here appeal.

The reference relied upon is:

Law 1,543,931 June 30, 1925.

Claims 1 and 7 are deemed to be illustrative and read as follows:

“1. A clay target having an area thereof coated with luminescent pigment having a phosphorescence factor of at least 0.25.
“7. That improvement in the art of nocturnal trap shooting which comprises, providing a clay target having a definitive area coated with luminescent pigment having a phosphorescence factor of at least for a time sufficient that the definitive area of the target directly to an activating source, and immediately projecting the target freely through dark space; said exposure to the activating source being for a time sufficient that the definite area of the target retains a brilliance of at least 100 microlamberts for at least one second after leaving the field of the activating source.”

Appellants’ invention relates to the application of a luminescent pigment, having a minimum phosphorescent factor of 0.25, to a definitive area of an ordinary clay target for the purpose of making said target visible for trapshooting at night. Immediately prior to its projection from the apparatus propelling such target, the pigment is activated by subjecting it, for not more than four seconds, to a direct source of light, such as a 150 watt incandescent or an ultra violet lamp. The degree of luminosity is governed by both the period of exposure to the light, and the degree and quantity of the composition of said coating,, the desired result being a target sufficiently luminous to enable the trapshooter to' *87 readily discern the target and follow its flight in the darkness.

From the patent to Law, we quote as follows: “The * * * invention relates to a method and apparatus for producing a novel, startling and puzzling illusion in connection with shadow dance performances on the stage. It is particularly useful and effective as a closing feature after a dance act of greater or less duration Hs $

It appears that Law coats a special stage drop with zinc sulphite or other luminous paint which becomes “phosphorescent” for a short period of time after being subjected to light. A dancer is placed in front of said drop whereupon “a brilliant white light is thrown upon her and upon adjacent portions of the drop * * *>» Immediately thereafter, the lights in the theatre are extinguished and when the special drop is raised that area of the drop which- has been illuminated by the spot light appears luminous, while the portion shielded from the light by the •dancer’s body reveals a non-luminous silhouette of her figure. The illusion appears to be that the dancer herself is “floating upward out of sight.”

The Board of Appeals held that claim 1 was illustrative of claims 1, 2, 3, 4, and 8 ■and that it differed from the disclosure •in the Law patent in only two respects; ■namely, that Law discloses a back drop 'instead of a clay target, and that he did •not specify that the pigment applied to the back drop should have a minimum phosphorescent factor of 0.25, and con■cluded that such differences would not impart invention to the claims.

The board was of the opinion that no invention was involved in the idea of coating a clay target or any other article with luminous paint so that it could be seen in the dark when Law showed a different .article similarly coated for the same purpose.

Appellants readily admit that they were -not the first to suggest trapshooting at -night; that, as a matter of fact, it was •suggested in 1888 by a patent to Jacobs, JNo. 393,435. Jacobs’ target was equipped with several fuses which were to be lighted before the target was discharged from the trap. Neither do appellants contend they are the first to apply a coat of luminescent pigment to an article. They do strongly contend, however, that the principal question here involved is “Whether the prior art made it obvious that the combination of a clay pigeon with a luminescent coating would result in conditions of quick perception and sharp visibility necessary for trap-shooting at night; and specifically whether Appellants’ target is inventively different from the Theatrical Illusion disclosed in the Law patent * *

In support of their contention, appellants argue that for at least sixty years numerous efforts were made to provide means for trapshooting at night but that none of them were completely successful. The principal attempt was in floodlighting the field from various angles and by incandescent lights of various power. It seems, however, that under such lighting conditions the target traveled about one-tenth of its total trajectory before the eyes were able to see it, and that floodlighting was also found objectionable because of the relatively high cost of installation which was about two thousand dollars. On the other hand, the affidavits made by several seemingly responsible individuals who have been devotees of this particular sport for many years reflect both surprise and a high degree of satisfaction with appellants’ luminescent target. They state, in effect, that appellants’ target is visible to the eye immediately upon its release from the trap and that it can be easily followed through its entire trajectory; and that even though but a fragment of the target is hit, the “pyrotechnic” result is immediately obvious to the scorer, whereas in ordinary daylight or under floodlighted conditions, such a fragment might not be detected. They also point out that the installation cost of appellants’ system is approximately fifty dollars.

It seems to us that the following excerpts from the affidavit of one Joe M. ■Davison, who appears to have been a consistent devotee of trapshooting for twenty years and who has won honors in that sport, *88 are quite relevant: “The spectacular effect when luminescent targets are broken also facilitates accurate scoring. The luminescent target travels through space like a ¡ball of fire against a black curtain and, although the 'contestant may knock no more than a single small chip from the target, such is readily identifiable as a hit, whereas under ordinary conditions, even in daytime, a hit where a single small chip or fragment is knocked from the clay target is some times not seen by the official scorer and is therefore scored as a loss.” He further observes that “Affiant has long been familiar with the practice of painting various articles with luminescent paint whereby the same could be seen at night and, although affiant has also for many years been anxious to develop more satisfactory night trap shooting conditions, it was not obvious to him that such conditions could be provided by luminescent targets. When affiant was first introduced to' the luminescent target, he wondered why he had not previously thought of it.”

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190 F.2d 86, 38 C.C.P.A. 1206, Counsel Stack Legal Research, https://law.counselstack.com/opinion/application-of-franz-ccpa-1951.