Nicola Leonardis v Sartas [1996] FCA 1548

This is an appeal in a patent case raising, amongst other things, questions of fair basing on two provisional specifications, obviousness, and infringement.  At the commencement of the hearing of the appeal, the solicitor for the respondent announced that his client opposed "the substance of the appeal", but did not wish to be heard upon the argument of it.  Senior counsel for the appellant, that being so, stated that his client, if successful on the appeal, would not seek an order against the respondent for costs to be incurred after the first day of the hearing.  However, the appellant was not left without a contradictor, for an application to intervene, or to be heard as amicus curiae, was made by a company Olympic General Products Pty Limited, which was given leave to present submissions as amicus curiae on issues going to the question of invalidity of the patent, the company having undertaken to accept any order that the Court might think fit to make concerning the costs of the motion for leave that it had brought or of the hearing of the appeal.

There were two provisional specifications, upon which the appellant rests a claim to priority in respect of the patent issued on the complete specification thereafter lodged.  The first provisional specification, headed "PATENT SPECIFICATION FOR THE INVENTION ENTITLED: `IMPROVEMENTS RELATING TO FOUNDATION FORM WORK'", was lodged on 23 October 1986.  The document stated that the "invention relates to foundation form work", and continued...

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