Case Note & Summary
The Plaintiff, Macleods Pharmaceuticals Limited, filed a suit against Intas Pharmaceuticals Ltd. and another for infringement of their registered trademark ANTITHYROX and unregistered trademark THYROX, and for passing off. The Plaintiff sought an interim injunction restraining the Defendants from manufacturing and marketing their product under the mark LETHYROX. The Plaintiff claimed that they had been using ANTITHYROX since 1995 and THYROX since 1998 for thyroid medications, and that the Defendant's mark LETHYROX was deceptively similar. The Defendants argued that THYROX is a descriptive term for thyroid drugs and that LETHYROX is distinct due to the prefix 'LE'. The court analyzed the marks and found that ANTITHYROX and LETHYROX are not deceptively similar, as the prefix 'LE' creates a different phonetic and visual impression. The court also noted that THYROX is a common suffix in the pharmaceutical industry for thyroid products and is descriptive, thus not entitled to exclusive protection. The court held that the Plaintiff failed to make out a prima facie case for infringement or passing off, and the balance of convenience was in favor of the Defendants. Consequently, the Notice of Motion was dismissed, and the interim injunction was refused.
Headnote
A) Trademark Law - Infringement - Deceptive Similarity - Section 29(2) of the Trade Marks Act, 1999 - The court considered whether the mark LETHYROX is deceptively similar to ANTITHYROX and THYROX. Held that the marks are not deceptively similar as the prefix 'LE' in LETHYROX sufficiently distinguishes it from ANTITHYROX, and THYROX is a descriptive term for thyroid medication. (Paras 1-10) B) Trademark Law - Passing Off - Descriptive Marks - The court held that THYROX is a descriptive term commonly used in the pharmaceutical industry for thyroid drugs, and the Plaintiff cannot claim exclusivity over it. The Defendant's use of LETHYROX does not amount to passing off. (Paras 11-15) C) Trademark Law - Interim Injunction - Balance of Convenience - The court found that the balance of convenience lies in favor of the Defendants, as the Plaintiff failed to establish a prima facie case of infringement or passing off. The injunction was refused. (Paras 16-20)
Issue of Consideration
Whether the Defendant's mark LETHYROX is deceptively similar to the Plaintiff's registered trademark ANTITHYROX and unregistered trademark THYROX, and whether the Plaintiff is entitled to an interim injunction.
Final Decision
The Notice of Motion is dismissed. The interim injunction is refused.
Law Points
- Trademark infringement
- passing off
- deceptive similarity
- pharmaceutical trademarks
- descriptive marks
- suffix common to trade
- likelihood of confusion
- honest concurrent use
