“The question is not whether a trader who has chosen to incorporate in his trading style words which are descriptive of the services he performs cannot as a matter of law succeed in a passing off action based on the use by another trader of a trading style which, by reason of the incorporation of those words, is calculated to deceive, unless he establishes by evidence of such words have acquired a secondary meaning what has ceased to be descriptive of the services rendered. … It is not a condition of success … that the Plaintiffs should establish that the words in dispute had acquired a secondary meaning. The real question is the simple and familiar one. Have the appellants proved that the use by the respondents of the trading style “Office Cleaning Association ” is calculated to lead to the belief that their business is the business of the appellants? It is in these words “calculated to lead to the belief” that the issue lies. It is a calculation often difficult to make, .. The nature of the words which are used in the trade name, the circumstances and peculiarities of the trade, the motives, proved or presumed, of the trader who would use the words, all these and many other factors must be considered by the judge in determining whether a Plaintiff can succeed in his claim. It is a question upon which the judge who has to decide the case has to bring his own mind to bear and which he has to decide for himself … But instances of actual deception will be given their due weight. … the Courts will not readily assume that the use by a trader as part of his trade name of descriptive words already used by another trader as part of his trade name is likely to cause confusion and will easily accept small differences as adequate to avoid it. … It comes in the end, I think, to no more than this, that where a trader adopts words in common use for his trade name, some risk of confusion is inevitable. But that risk must be run unless the first user is allowed unfairly to monopolise the words. The Court will accept comparatively small differences as sufficient to avert confusion. A greater degree of discrimination may fairly be expected from the public where a trade name consists wholly or in part of words descriptive of the articles to be sold or the services to be rendered.”
“16 The next point of passing off law to consider is misrepresentation. Sometimes a distinction is drawn between “mere confusion” which is not enough, and “deception,” which is. I described the difference as “elusive” in Reed Executive Plc v Reed Business Information Ltd [2004] R.P.C. 40 . I said this, [111]: “Once the position strays into misleading a substantial number of people (going from ‘I wonder if there is a connection’ to ‘I assume there is a connection’) there will be passing off, whether the use is as a business name or a trade mark on goods.” 17 This of course is a question of degree—there will be some mere wonderers and some assumers—there will normally (see below) be passing off if there is a substantial number of the latter even if there is also a substantial number of the former. 18 The current (2005) edition of Kerly contains a discussion of the distinction at paras 15–043 to 15–045. It is suggested that: “The real distinction between mere confusion and deception lies in their causative effects. Mere confusion has no causative effect (other than to confuse lawyers and their clients) whereas, if in answer to the question: ‘what moves the public to buy?’, the insignia complained of is identified, then it is a case of deception.” 19 Although correct as far as it goes, I do not endorse that as a complete statement of the position. Clearly if the public are induced to buy by mistaking the insignia of B for that which they know to be that of A, there is deception. But there are other cases too—for instance those in the Buttercup case. A more complete test would be whether what is said to be deception rather than mere confusion is really likely to be damaging to the claimant's goodwill or divert trade from him. I emphasise the word “really.” … 21 In this discussion of “deception/confusion” it should be remembered that there are cases where what at first sight may look like deception and indeed will involve deception, is nonetheless justified in law. I have in mind cases of honest concurrent use and very descriptive marks. Sometimes such cases are described as “mere confusion” but they are not really—they are cases of tolerated deception or a tolerated level of deception. 22 An example of the former is the old case of Dent v Turpin (1861) 2 J&H 139. … 23 An example of the latter is Office Cleaning Services Ltd v Westminster Window and General Cleaners Ltd (1946) 63 R.P.C. 39 . The differences between “Office Cleaning Services Ltd” and “Office Cleaning Association,” even though the former was well-known, were held to be enough to avoid passing off. Lord Simmonds said: “Where a trader adopts words in common use for his trade name, some risk of confusion is inevitable. But that risk must be run unless the first user is allowed unfairly to monopolise the words. The Court will accept comparatively small differences as sufficient to avert confusion. A greater degree of discrimination may fairly be expected from the public where a trade name consists wholly or in part of words descriptive of the articles to be sold or the services to be rendered”
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"I have discovered the reason for the delay in replying: there is another, similarly named event at the Grosvenor on 13 October - the British Asian Achievers Award - which we have also been approached about - but I will make sure that we are looking after both!"