The RELEVANT LEGAL principles
22 The extent of the novelty of a design affects the degree of protection that is afforded to the features that are novel or original over the prior art (Dart Industries Inc v Décor Corporation Pty Ltd (1989) 15 IPR 403 ('Dart') at 410), not including merely functional features (Dart at 408). Once in the prior art, a design characteristic is 'free to everybody to employ' (Rosedale Associated Manufacturers Ltd v Airfix Products Ltd [1956] RPC 360 at 364 (approved in Dart at 409)).
23 In Malleys Limited v J W Tomlin Pty Limited (1961) 180 CLR 120 ('Malleys') at 127, the High Court set out the test for infringement of a registered design under s 30:
'There is infringement in any one of three cases - that is, where the design that has been applied is:- (i) the registered design (ii) an obvious imitation of the registered design (i.e., not the same but a copy apparent to the eye notwithstanding slight differences) and (iii) a fraudulent imitation (i.e., a copy with differences which are both apparent and not so slight as to be insubstantial but which have been made merely to disguise the copying). Visual comparison will establish (i) or (ii) but a finding of fraudulent imitation must require something more because in such a case visual comparison is not of itself sufficient to establish imitation; otherwise it would be an obvious imitation.'
24 Thus, a distinction is drawn between 'slight differences', where visual comparison may establish obvious imitation, and 'differences which are both apparent and not so slight as to be insubstantial', where visual comparison is not sufficient. There may be fraudulent imitation where those not insubstantial differences may be disregarded if they have been made merely to disguise copying. A finding of fraudulent imitation requires a finding that there is imitation, notwithstanding that the design applied by the alleged infringer is not apparently an imitation, because the evidence showed that the design had been applied. One must be able finally to say that the product is an imitation visually recognisable as such (Firmagroup Australia Pty Ltd v Byrne & Davidson Doors (Vic) Pty Ltd (1986) 11 FCR 415 ('Firmagroup')at 417 per Fox J with whom Jenkinson J agreed).
25 A fraudulent imitation is a copy of a registered design with differences that are both apparent and not so slight as to be substantial but that have been made merely to disguise the copying (Malleys at 127). The essence of fraudulent imitation is that the design of an accused article has knowingly, consciously or deliberately been based on or derived from a registered design, although neither dishonest intent nor deliberate or conscious intention to copy is a necessary element (Dart at 411-412). Section 30 of the Act is intended to ensure that persons, other than those entitled to the benefit of a registered design, cannot produce or market articles that are derived by imitation, whether obvious or disguised, of the registered design and which are likely to be regarded by others who may acquire them as those of the registered design owner (Dart at 412). It is relevant, in determining fraudulent imitation, to establish that any differences were adopted for the purpose of disguising any fact of copying (Dart at 414).
26 A registered design can be simply applied. There can be obvious imitation, which involves slight differences. Fraudulent imitation is the test to be applied for 'not insubstantial differences'. In considering fraudulent imitation the question is whether there is disguised copying, whether there is a dishonest concealment of the reality of copying in order to evade responsibility for it or whether the differences are not to conceal but, for example, involved a making over of a design to deal with technological problems. In the latter case there is no fraudulent imitation (Koninklijke Philips Electronics NV v Remington Products Australia Pty Ltd (2000) 100 FCR 90 at 114).
27 There can be fraudulent imitation, notwithstanding an honest belief that a different, non-infringing design is being produced. The special ingredient that is required is that the alleged infringer should be aware of the registration of the design in question and should make some use of it. This permits a greater degree of dissimilarity or differences that are greater in degree than required for obvious imitation (Firmagroup at 416 per Fox J).
28 There can be fraudulent imitation where the differences between the article and the design are obvious and recourse may be had to extrinsic evidence to establish the fact of deliberate copying. In such a case, the existence of comparatively unimportant differences from the design are sufficient to prevent the imitation being obvious are not sufficient to avoid fraudulent imitation (Russell-Clarke, Copyright in Industrial Designs, Pitman, London, 1st edn, 1930 ('Russell-Clarke') at 72-73 as cited by Fox J in Firmagroup at 418).
29 Copying is necessary for a finding of fraudulent imitation but is not sufficient; there must still be imitation. A different design embodying some of the features of a registered design, but with a different appearance, is not an infringement (Malleys at 127-128). The need to show that the alleged infringer has actually made an imitation is a minimum requirement (Lift Verkaufsgerate GmbH v Fischer Plastics Pty Ltd (1993) 27 IPR 187 at 195). It is then necessary to find that each difference was adopted merely to disguise the taking of the registered design. There is no fraudulent imitation if the shape that gave the registered design novelty over the prior art is not taken (L J Fisher & Company Ltd v Fabtile Industries Pty Ltd (1978) 1A IPR 565 at 580-581).
30 For fraud to be imputed, it must be shown that there is knowledge or a reason to suspect, that the article which is intended to be the subject of imitation is an embodiment of a registered design. A finding of fraudulent intention is not conclusive. There is no infringement if, despite fraudulent intention, the made article has a distinctly different shape or configuration from that in respect of which a design is registered, even if there are also substantial similarities. Then, the question is whether the differences, which are apparent and substantial are, nevertheless, mere disguises. These factors are each important because, even if every feature of the design were adopted solely in order to disguise copying, there must still be an imitation: '[e]ven if every conceivable element of fraud was present, the fraudulent and disguised copying must result in a copy' (Turbo Tek Enterprises Inc v Sperling Enterprises Pty Ltd (1989) 23 FCR 331 ('Turbo Tek') at 348-350).
31 There must be evidence to support a finding that K-Aire knowingly, consciously or deliberately based the design of KA1 or KA2 upon the Design or that the design of KA1 and KA2 was derived from the Design so as to constitute fraudulent imitation (Dart at 414). A necessary finding is that there was an adoption of differences or changes in order to disguise the fact that there has been copying (Dart at 414). If K-Aire knew the design when making KA1 or KA2, the onus is on it to prove an absence of copying (Russell-Clarke at 73; Firmagroup at418 per Fox J).