U.S. Supreme Court
Werk v. Parker, 249 U.S. 130 (1919)
Werk v. Parker
Argued November 21, 1918
Decided March 3, 1919
249 U.S. 130
The use of horse-hair mats for extracting oil, as abundantly shown in standard and easily accessible books of reference, may be noticed judicially. P. 249 U. S. 132.
The application in the extraction of cotton-seed oil of mats made of horse hair or other long animal hair, woven in a manner designated, but without improvement in the art of weaving, held not invention, but merely mechanical adaptation of familiar materials and methods. P. 249 U. S. 133.
Divisional patents Nos. 758,574 and 758,575, to Robert F. Werk, relating to oil-press mats for use in extracting cotton-seed oil, held invalid as to certain claims.
231 F.1d 1 affirmed.
The case is stated in the opinion.