Good point. Nothing from the Cold War should present any problems for this endeavor. Design patents in the US are 15 years in length and a quick Google search shows Swiss patents are 20 years: https://www.ige.ch/en/protecting-your-ip/patents

This is not exotic 6.8mm CT ammo. Every shop that can produce it, should. And then send it to Ukraine.

PS: Also, what's the threat here from the Swiss? We won't sell you ammo for 50-ish decades old weapons systems that you shoved in a warehouse years ago?