37Consequently, as the Court has ruled on numerous occasions, the specific purpose of trade mark rights is, in particular, to guarantee to the proprietor of a trade mark that he has the right to use that trade mark for the purpose of putting a product into circulation for the first time and thus to protect him against competitors wishing to take advantage of the status and reputation of the trade mark by selling goods illegally bearing that mark. In order to determine the exact extent of this right exclusively conferred on the proprietor of the trade mark, regard must be had to the essential function of the trade mark, which is to guarantee the identity of the origin of the trade marked product to the consumer or end user by enabling him, without any possibility of confusion, to distinguish that product from goods having another origin (judgments of 17 October 1990, HAG GF, C‑10/89, EU:C:1990:359, paragraph 14, and of 11 July 1996, Bristol-Myers Squibb and Others, C‑427/93, C‑429/93 and C‑436/93, EU:C:1996:282, paragraph 44 and the case-law cited).
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