This name for a type of flask invented by James Dewar in 1892 became a trademark
[DOC] [TLE] NeoFic - A vacuum flask (also known as a Dewar flask, Dewar bottle or [PAR] Invented by Sir James Dewar in 1892, the vacuum flask consists of two flasks, 
placed one ... inventor and merchant Gustav R. Paalen, who designed various 
types for ...