I am about to apply for a patent with regard to a specific type of interaction between website users. My website has been developed to allow Facebook logins for users (but not implemented yet), but I am worried about their extensive terms and conditions, which I will never even be able to read let alone understand.
I was wondering if the terms could theoretically contain a clause stating that any patent awarded for something which could be accessed by Facebook in the past would not prevent them from using the said process themselves, since they had been granted access through the login?