How long until Tigger is public domain?

Excuse me, I was wondering if you could shed some light on a specific topic for me. I've been curious about the status of Tigger, the beloved character from Winnie-the-Pooh, and whether there's a definitive timeline for when he'll enter the realm of public domain. Do you have any insights into the legal intricacies surrounding copyright expiration for such characters, and specifically, how much longer we might have to wait until Tigger's image and likeness can be freely used by the public without infringing on any copyright protections? Thank you in advance for your expertise on this matter.