Historical information

PYREX is a brand that was introduced by Amory Houghton Sr. (1812-1882) founder of Corning Incorporated in 1915 for a line of clear, low-thermal-expansion borosilicate glass used for laboratory glassware and kitchenware. In 1879 Corning Incorporated developed a bulb-shaped glass encasement for Thomas Edison’s new incandescent lamp. Borosilicate glass was first made by German chemist and glass technologist Otto Schott, founder of Schott AG , Jena , Germany in 1893, 22 years before Corning Inc. produced the PYREX brand. Schott AG sold the product under the name "Duran.".. In 1908, Dr. Eugene Sullivan (1872 - 1962), Director of Research at Corning Glass Works, U.S.A., who had studied in Leipzig, Germany, developed Nonex, a borosilicate low-expansion glass. 1913 Jesse Littleton of Corning Inc. discovered the cooking potential of borosilicate glass by giving his wife a casserole dish made from a cut-down Nonex battery jar. Corning Inc. removed the lead from Nonex, and developed it as a consumer product and Pyrex made its public debut in 1915 during World War I, positioned as an American-produced alternative to the German ‘Duran’. 1952 ‘Corning ware’ ceramic glass was developed by Dr. S.D.Stookey. 1994 Corning received an Award for life- changing, life- enhancing technological inventions that enabled new industries, - lighting, television, optical communications. The PYREX line of highly durable cookware and laboratory glass products are still available today. It is now made of tempered glass.

Physical description

A pharmaceutical clear glass beaker with capacity 300ml

Inscriptions & markings

PYREX 300