I got a letter a law firm 'Kilpatrick Townsend' who claims to represent Apple inc. They claim that I am infringing on Apple by selling "USB wall power adapter" on my ebay store. All items I sell is clearly marked as unbranded/generic and states it's not endorsed by Apple. Should I response to their letter? Can they legally sue on this claim? How should I response?
I'd bet that it's not copyright but trademark infringement that's involved. Whether their claim is valid or not can't be determined from the little that you posted.
Consumers can use this platform to pose legal questions to real lawyers and receive free insights.
Participating legal professionals get the opportunity to speak directly with people who may need their services, as well as enhance their standing in the Lawyers.com community.