About an artist probably from the 40's who signed their works Dourat or Dounat?

The artist you are referring to might be Jean Dourat, a French painter active in the mid-20th century. Known for his vibrant landscapes and still life compositions, Dourat's signature style often features bold colors and dynamic forms. Though not widely recognized today, his works reflect the post-war artistic movements of the 1940s, blending traditional techniques with modern sensibilities. If you meant a different artist, please provide additional context for more accurate information.