Trademark application information is public, and this information is often used by illegitimate services to take advantage of unsophisticated parties. The USPTO will only communicate via email (if the application was filed electronically), or through official snail mail. The USPTO does not use third parties for correspondence. Any correspondence which is not from the USPTO is likely misleading and can be ignored. The USPTO provides guidance on “potentially misleading” correspondence with examples misleading letters. According to the USPTO, if you believe trademark correspondence is misleading, you should file a complaint with the FTC. As always, if you are unsure about a letter or offer please contact an attorney.
Developing an app is extremely time-intensive and expensive, so it makes great business sense to try and protect your app idea. Protecting an app, however, is not as straight forward as other technologies. This blog post aims to summarize key areas of law, and the protection afforded to app developers.