The usual British pronunciation for all senses of this word is [pay-tuhnt]. In technical usage, when it refers to the legal protection of an invention, the word is often pronounced [pat-uhnt]. Americans use [pat-uhnt] for all uses of the word except 'obvious', for which they use [pay-tuhnt].
Red and white are the colours of Bohemia, dating back to the 13th century. Blue represents Moravia. Unlike that of the Slovak Republic, the Czech flag is not based on the pan-Slav colours. Effective date: 1 January 1993.