In re Donaldson

166 F.2d 169, 35 C.C.P.A. 885
CourtCourt of Customs and Patent Appeals
DecidedFebruary 10, 1948
DocketNo. 5391
StatusPublished

This text of 166 F.2d 169 (In re Donaldson) 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
In re Donaldson, 166 F.2d 169, 35 C.C.P.A. 885 (ccpa 1948).

Opinion

Gtarrett, Presiding Judge,

delivered the opinion of the court:

. The only two claims numbered, respectively, 20 and 21, of appellant’s application for patent relating to “Treated Paper Liner for Adhesive Roll” were rejected by the Primary Examiner on the ground of lack of invention over prior art cited. The Board of Appeals affirmed the Primary Examiner’s decision and the instant appeal to this court followed:

The brief for appellant quotes claim 20 as representative. It reads:

20. As an article of manufacture, adhesive sheet material adapted to he remov-ably secured to a person consisting of a base, a coat of adhesive material on said base, and a paper cover on said adhesive surface containing and impregnated with a synthetic resin bonding the lint fibers on the surface of the paper to the base thereof and incorporating in the base the physical characteristics of imperviousness and flexibility without brittleness whereby the paper cover can be removed from the adhesive surface without adherence of any particles of one material upon the other.

Claim 21 is substantially the same as claim 20 with the additional feature of incorporating, if desired, a disinfectant in the paper layer to sterilize the paper and maintain the sterility of the adhesive surface.

The following patents are listed as references in the decision of the board:

Beckmann, 1,476,682, December 11,1923.
Fuller, 1,555,960, October 6,1925. ’
Hayden et al, 1,861,530, June 7,1932.
Eustis, 2,133,609, October 8,1938.
Dickson, 2,145,755, January 31,1939.
Warren (British), 493,381, October 7,1938.

[886]*886The subject matter, which is simple in character, is illustrated by two drawings, one of which discloses tape wound upon a spool. The base of the tape is a fabric. It is covered on its inner side with a layer of adhesive material upon which there is imposed a layer of paper which is the liner alluded to in the title, supra. The liner contains and is impregnated with a synthetic resin. If desired, a disinfectant, according to claim 21, may be incorporated in the liner, but it is not claimed that this limitation of itself renders claim 21 patentable.

It should be understood that the claim of patentability is limited to the paper layer, in the combination described, which constitutes a liner of the tape structure. All other elements or features of the claims are conceded to be old in the art, and patentability because of the presence of the paper layer or liner in the combination is predicated solely upon the feature of the layer being impregnated with synthetic resin — at least synthetic resins are the only bonding agents for the paper specified in the appealed claims.

The specification states (omitting the numerals) :

* * * A layer of impregnated paper * * * is apiilied on the adhesive surface * * * so that on the spool in each layer this paper sheet * * * separates the fabric base * * * of the tape of one layer and the adhesive surface of the tape of the following layer.

The advantages claimed for the alleged invention in the specification are summarized in appellant’s brief as follows:

1. The synthetic resin greatly increases the tear strength of the paper So that it can satisfactorily be used as a covering material for an adhesive surface.
2. The synthetic resin imparts a high degree of flexibility to the sheet of paper and thereby avoids cracking of the paper which would impair the sterility of the adhesive if surface cracks appear in the paper.
3. The synthetic resin bonds the lint fibers on the surface of the paper to the body of the paper and thereby prevents lint fibers from adhering to the adhesive material when it is pulled from the paper covering.
4. The synthetic resin imparts to the paper a quality of allowing for clean removal of the adhesive from the surface of the paper covering without any particles of adhesive adhering to the paper covering or of the paper covering to the adhesive.

In denying the claims the Primary Examiner said, inter aUa:

In view of the disclosure of Warren, it does not appear to be inventive to substitute the liner of Warren in any one of the devices of Beckmann, Hayden et al, Dickson, Fuller or Eustis in place of the types of liners or facing sheets shown. This appears to be an obvious substitution of parts should it be desired to avoid the “picking” of the paper sheets as is taught in Warren.

The Warren (British) patent, according to a recital in the specification, “relates to a combination of a sheet of rubber with a surfaced sheet material of cloth, paper or the like, having properties adapting it for use in carrying, separating and protecting tacky rubber.”

[887]*887The surface or face of the sheet of rubber is tacky — that is, it is sticky or adhesive. The patent teaches the application to the tacky rubber surface of a sheet of material such as cloth, or paper, which has been treated by filling it with “glue, casein, starch or other adhesive material, with or without solid pigments * * and pressing or “finishing” it by calendering which gives it a “smooth, glossy surface.”

The specification recited:

A ¿lied and smoothed sheet of cloth or paper, as above described, possesses a smooth and dense surface, but is not ordinarily, in that stage of manufacture, adapted for use as a removable carrier of sheeted or slabbed tacky rubber, because the surface of the same is penetrable by the rubber composition, or by components thereof, and is so strongly adherent thereto that it cannot be separated from the rubber without tearing, splitting or “picking.”
It has now been discovered, however, that such filled and smoothed sheet material may be made non-adherent to tacky rubber, to the degree required, by surface coating it with the aforesaid lacquer [referred to in a preceding paragraph] * * *.

It is further said in the specification that the lacquer coating may be produced by applying a solution containing various cellulosic esters or ethers and also “Resins compatible with such cellulose esters and ethers such as Vinyl resins * * * and Acryl resins.”

The patent to Beckmann relates to a corn plaster. It discloses a medicated pad which may be provided with an adhesive material on its “wearing” surface “to stick to the corn.” In one form shown a “protecting piece or strip of impervious material,” which may be paper, is applied to the wearing surface, one or both surfaces of the strip being “waxed or paraffined to exclude dirt and moisture from the pad and medicament.”

The patent to Fuller “relates to a sanitary protector intended to take the place of ordinary adhesive tape and bandages” in cases of minor injury. It includes an adhesive tape which consists of a tacky rubber sheet with a paper lining.

The patent to Hayden et al. relates to mounting plasters and other adhesive faced articles. It shows an adhesive faced article mounted upon crinkled or fluted paper.

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Bluebook (online)
166 F.2d 169, 35 C.C.P.A. 885, Counsel Stack Legal Research, https://law.counselstack.com/opinion/in-re-donaldson-ccpa-1948.