Sector light Authorities). For example, the United States uses a signalling stereotype which is the opposite of Europe. In USA, the red light indicates the starboard side of the channel for harbour bound vessels, while the green light indicates the port side of the same channel. An expression to remind of this is "red right returning". An example of a sector light is the light of the Fisgard Lighthouse in British Columbia. The lighthouse as built to guide ships through the entrance of Esquimalt harbour. The white sector is an isophase light of 2s from 322° to 195°. If the ship sees
Colour trade mark the United States Court of Appeals ruled in 1985 that Owens Corning had the right to prevent competitors from using the colour pink in their insulation products, thus making Owens Corning the first company in the United States to trademark a colour. In 1995, the United States Supreme Court further acknowledged that a colour could be used as a trademark in the case of "Qualitex Co. v. Jacobson Products Co., Inc.", 514 U.S. 159 (1995). The trademark owner must show that the trademark colour has acquired substantial distinctiveness, and the colour indicates source of the goods to which it is