T 0249/98 11-01-2000

1. The appeal is admissible.

2. Admissibility of the opposition

2.1. Since the requirements of Article 99, Rule 55(a) and(b) and Rule 1 are fulfilled the remaining question to be considered here is whether the requirements of Rule 55(c) are met, in particular whether at least one of the alleged prior uses relating to the "TB380" and the "Draaibel" bicycle bells was submitted in a manner so that a sufficiently clear "indication" of the facts, evidence and arguments presented in support of the ground of lack of novelty could be derived from the notice of opposition.

2.2. The appellant was of the opinion that evidence filed later than the 9 month period mentioned in Article 99 EPC should have been taken into account by the opposition under Article 114(1) EPC.

However, substantive examination of the opposition can be started only if the opposition is formally admissible which means that for deciding the admissibility only those facts, evidence and arguments presented before the end of the opposition period can be taken into account for such decision. If later filed evidence was accepted for this purpose this clearly would go against the limitation of the opposition period stipulated by Article 99 EPC.

2.3. Considering evidence based on an alleged prior use, in accordance with the case law of the Boards of appeal the notice of opposition must indicate all the facts which make it possible to determine the date of prior use, what has been used, and the circumstances relating to the prior use for allowing a conclusion whether or not the prior use was publicly available before the filing date of the patent in suit.

Furthermore, in relation to the concept of "indication" mentioned in Rule 55(c) EPC (see for example T 204/91, point 5) the scope and depth of substantiation of the prior use needs to be such as to enable the patentee and the Opposition Division to see clearly just what attack was being mounted against the patent, and what evidential support was being adduced for that attack. However, evidence mentioned in the notice of opposition could be submitted after expiry of the period for opposition (see T 538/89, point 2.6).

2.4. When considering the "indication" provided in the notice of opposition, the Board draws attention to the fact that the subject-matter claimed concerns a simple and generally well known technical item, i.e. a bicycle bell. Therefore, since the skilled person is well aware of the general mechanical construction of a bicycle bell, the evidence submitted by the appellant must be judged against such general background knowledge of the skilled engineer. In so far the Board follows the conclusion drawn in the decision T 538/89 (point 2.3, second paragraph) that the question whether the opposition is sufficiently substantiated to conclude its admissibility is closely related to the technical particularities of the case concerned and may also depend on the difficulty of answering the decisive questions. This must be assessed on an objective basis, from the point of view of a reasonably skilled person in the art to which the opposed patent relates (see in this respect also T 222/85, supra, last lines of point 4 and point 5).

2.5. The appellant tried to establish the date of the alleged prior use of the "TB 380" bell by reference to the letter (c). In the Board's opinion, the content of the letter in connection with the leaflet (b) is basically suited to support the appellant's view that the rotary bell "TB 380" offered in that letter could be ordered and resold freely and was therefore made available to the Dutch market from 2 August 1990 on. In the leaflet the shape of the TB 380 bell is shown to be apparently the same as the one in the photograph (a) which follows from the specific shape of the TB 380 bell and also corresponds with the statement in the letter (c) that there is an outer ring which has to be turned to ring the bell.

The appellant further indicated that he had a limited number of those bells available which could be inspected at request and would be shown at the oral proceedings to be held.

This evidence is considered to be a sufficiently clear "indication" (but not necessarily sufficient proof) that the "TB 380" bells were considered to be freely available on the Dutch market before the priority date of the patent in suit, thus answering the question where (in the Netherlands), when (in advance of the priority date of the patent in suit), how (by free ordering and selling) and by whom (the company Tokyo Bell) the alleged prior use took place.

2.6. Considering now the construction of the "TB 380" bell, although the photograph (a) is not very clear, at least a greater part of its components can be identified with the help of the description given in the notice of opposition and the letter to the "Alkmaarse Groothandel Unie" (c). The main components visible on the photo of this bell are:

- a frame and handlebar mounting means,

- a bell mounted to the frame,

- striking means

- a rotatable outer ring for actuating the striking means so that the bell is rung.

It was further explained in the notice of appeal by reference to the claim of the present patent which features of the claim were considered to be incorporated in the "TB 380" bell (features in bold letters) and which features were implied by the construction of the "TB 380" bell (features in normal letters).

Additionally the implied features were addressed one by one to make clear that the arm on which the striking means was mounted is formed by a helical spring. Although such a spring is not identifiable in the further evidence (including the photograph) it is clear from the feature concerning the cam co-operating with a toothing provided on the inner circumference of the annular operating means - which can only refer to the rotatable outer ring mentioned in the evidence and which is recognisable in the photograph - together with the further explanation concerning the cams being formed by the striking means themselves, that spring support is provided for the striking means so as to allow the striking means to move and ring the bell when the outer ring is rotated.

Therefore, considered in relation to the explanations given in the notice of appeal, the Board cannot follow the respondent's opinion according to which the various parts visible on the photograph were neither identified as such, nor were they in any way identified vis-a-vis the features of claim 1 nor was the operation of the bell and the function of the various visible parts evident.

Additionally, the appellant offered further evidence by inspection of the TB 380 bells that were in its possession well before the expiry of the opposition period.

Therefore a sufficiently clear "indication" of "what" was allegedly used was also present in the notice of appeal and at any time this could be verified by inspection of the bells offered for inspection.

2.7. The respondent further argued that the notice of appeal did not contain sufficient information so as to allow the Patentee and the Opposition Division to form a definite opinion on the ground of opposition raised without the need to make further investigation, and to indicate clearly to the proprietor the case he has to answer, as was the notion of "indication" identified in the decision T 204/91.

The Board is of the opinion that the respondent reads into decision T 204/91 a restrictive concept of "indication" which is neither supported by the content of this decision nor by the other decisions referred to.

In this respect attention is drawn to decision T 538/89 also referred to by the respondent, which sets out the difference between the requirements to be met when deciding the admissibility of the opposition and the probative value of the facts and evidence provided in support of the ground of opposition when examining the allowability of the opposition.

The arguments relied upon by the respondent essentially concern the question whether the evidence submitted in respect of the alleged prior use provides unequivocal proof of the alleged facts rather than the more general requirement following from the concept of "indication" as outlined above.

2.8. Summarising, as set out in points 2.4 to 2.5 above, the notice of opposition contains sufficient detail, at least as regards the TB-380 bell, to allow the patentee and the Opposition Division to understand the basis of the attack of lack of novelty of the subject-matter of claim 1 of the patent in suit. Therefore also the last requirement of Rule 55(c) EPC is fulfilled and consequently the opposition is admissible.

2.9. Since the requirements for admissibility are fulfilled, at least in respect of the alleged public prior use supported by the TB 380 bicycle bell, there is no need to consider the admissibility of the opposition in respect of the alleged public prior use of the "Draaibel".

Once the opposition is found admissible the facts, evidence and arguments presented in support of the ground of opposition, thus also including the alleged public prior use in respect of the "Draaibel" are subject to the examination of the opposition which now has to be carried out by the Opposition Division.

In the examination of the opposition only the facts and evidence not submitted in due time underlie the provision of Article 114(2) EPC and the case law of the Boards of appeal in that respect. In so far it is up to the Opposition Division to decide whether or not the late filed Japanese Utility model No. 3-49110 should be considered in the opposition proceedings.

3. Request for reimbursement of the appeal fee

3.1. In support of its allegation that the Opposition Division committed a substantial procedural violation the appellant referred to the Guidelines for Examination Part D, Chapter IV, paragraph 1.2.2, according to which a deficiency under Rule 55(c) is checked by the Opposition Division and (paragraph 1.3.3) the formality officer should notify the opponent in good time before the expiry of time limits within which it is still possible to remedy the deficiencies.

3.2. However, as regards the extent of the formalities officer's obligation to issue a communication to notify deficiencies under Rule 55(c) EPC it is also explicitly stated in the Guidelines that the opponent cannot seek legal remedy against failure to issue such a communication because this is to be regarded merely as a service afforded to the opponent by the EPO. The Board sees no reason to raise doubt in respect of the validity of such procedure under the requirements of the EPC or that the principle of good faith which governs the dealings with the parties and the EPO was infringed.

3.3. Furthermore, the mere fact that the Board has come to a different conclusion regarding the admissibility of the opposition does not in itself mean that the Opposition Division committed a substantial procedural violation. The issue involved when deciding upon the admissibility of the opposition was basically related to a question of judgment of the facts presented by the appellant rather than being of procedural nature (see also point 2.4 of this decision).

3.4. The appellant further argued that the late filed evidence, in particular the Japanese Utility model No. 3-49110 should have been taken into account by the opposition division. However, according to Article 101 EPC substantive examination of the opposition can be started only if the opposition is found formally admissible and therefore the provisions of Article 114(1) and (2) EPC do not apply in a case where the opposition procedure was not started due to inadmissibility of the opposition.

3.5. For the above reasons the Board concludes that there was no substantial procedural violation on the part of the Opposition Division. Consequently there is no basis for reimbursement of the appeal fee (Rule 67 EPC).