This application from 1990, which was abandoned in 1993, refers to prior registration 0722173, which is a classic Simplex trademark registered by Lucien Juy. However in this application the company name had become Simplex SA and it was based in Marsannay-la-Cote, a village just outside Dijon.

• Publisher: US Patent and Trademark Office
• Inventor: Simplex SA
• Country: USA
• Date: application filed April 1990
• Derailleur brands: Simplex
• Derailleurs: nothing specific