Comment by sebastiennight

Apple is a valid trademark in the "computers" category, but would not be accepted in the "food" category.

Here are the 13 valid trademarks in France containing the word "apple" in the same category as fruit: https://data.inpi.fr/search?advancedSearch=%257B%2522checkbo...

None of them are descriptive of the actual fruit.

"Apples in the Sky" is a valid trademark only because apples in the sky do not exist. If there was a strange meteorobiological event where such fruit started to grow in the clouds, this would no longer be a valid trademark for someone to create, because it would be descriptive of a category of things in the real world.