This from Aerobie’s FAQ page:
The AeroPress coffee maker is warranted against defects in materials and workmanship for a period of one year from date of purchase from an authorized retailer. We advise you to keep your receipt so that if you have a problem with your AeroPress before one year has passed, you can prove when you purchased it and that you purchased it from an authorized retailer that sells genuine AeroPress coffee makers.
Is Amazon an authorized dealer? Absolutely.