Translation of Verfallsdatum

A word might have one meaning in Mexico, and a totally other meaning in Columbia or in Venezuela. Let me check the words that are already translated before doing anything. I will try to add the other points tomorrow.
I've never been to America, but I wanna fly to New York in the end of this year, maybe go to Washington and possibly to LA. It would be nice one months to learn English there. I started to learn now.
I am glad you know, I have learned Czech and my English is also not that bad, but we could speak in German. I got your message and I want to apologize again. Next time I will do it more accurate.