Chile accedes to WIPO's Patent Cooperation Treaty (PCT)Published: April 21, 2009
Chile became the 140th contracting state of the Patent Cooperation Treaty (PCT) when it deposited its instrument of accession at the World Intellectual Property Organization (WIPO) on March 2, 2009. The Treaty will enter into force for Chile on June 2, 2009.

The accession by Chile means that in any international application filed on or after June 2, 2009, Chile (country code: CL) will automatically be designated, and as it will be bound by Chapter II of the Treaty, will automatically be elected in any demand for international preliminary examination filed in respect of an international application filed on or after June 2, 2009. Also, as of that date, nationals and residents of Chile will themselves be able to file PCT applications.
Sources:www.wipo.inten.sourcews.com