Purple Mountain (Kerry) Purple Mountain (Kerry) Purple Mountain () at high, is the 21st–highest peak in Ireland on the Arderin scale, and the 28th–highest according to the Vandeleur-Lynam scale. Purple mountain is the highest peak of the Purple Mountain Group, and is located in County Kerry, Ireland. Purple Mountain is composed of sandstone particles of various sizes which are collectively known as "Old Red Sandstone". Old Red Sandstone has a purple-reddish colour, and has virtually no fossils. The colour gave its name to the mountain group. The composition of "Old Red Sandstone" is variable and contains quartz stones, mudstones, siltstones, and sandstone particles
Colour trade mark 1425 (TTAB 2007), the purple colour was considered functional for coated abrasives, because “[i]n the field of coated abrasives, color serves a myriad of functions, including color coding, and the need to color code lends support for the basic finding that color, including purple, is functional in the field of coated abrasives having paper or cloth backing.” Saint-Gobain Corp. v. 3M Co., 90 USPQ2d 1425, 1447 (TTAB 2007). The Trademark Trial and Appeal Board, in In re Ferris Corp., 59 USPQ2d 1587 (TTAB 2000), held that the colour pink for wound dressings was functional and not registrable, as its colour