The application must contain an abstract. The purpose of the abstract is to give brief technical information about the disclosure as contained in the description, claims and any drawings. The abstract is merely for use as technical information and in particular cannot be used for the purpose of interpreting the scope of the protection sought. The abstract needs to be drafted so that it constitutes an efficient instrument for searching in the particular technical field and for evaluating if it is worth considering the whole content of the application.[Rule 57(d); Rule 47(5); ]