It's a trademark and yes it runs out but the owner can just refile and keep control of it since trademarks tend to be important icons for the company (like the bitten Apple logo).Dunno about Switzerland, but doesn't a patent/copyright run out after so long? That's a really old clock design.
If I hadn't looked at your name I would have thought you were seriousOh come on, give Apple a break. If it was the other way around Apple wouldnt sue over something so trivial. They are angels.