One of the examples is the color yellow applied to plastic baseball bats, to The Wiffle Ball, Inc .
Recall when there was a big fuss about color trademarks? Trademark Protection in Color: Do It By the Numbers!, 84 Trademark Rep. 379 (1994).
***On the general theme of premium branded products competing with generics in the days of recession (and after), see
Premium Brands and Private Label Products: The Inflation Challenge :
What happens to the relative position of premium brands and private level competitors when the Great Recession gives way to a sub-par economy recovery, under unusual credit and interest rate circumstances, and low inflation suddenly gives way to inflationary pressures in commodities?