x86 hasn't been around long enough for a copyright to expire; the only feasible type of protections to expire would be patents. In the US, copyrights last for 1

x86 hasn't been around long enough for a copyright to expire; the only feasible type of protections to expire would be patents. In the US, copyrights last for 120 years after creation of the work or 95 years after the initial publication, whichever is shorter. (Referenced from https://en.wikipedia.org/wiki/Copyright_law_of_the_United_States#Duration_of_copyright https://en.wikipedia.org/wiki/Copyright_law_of_the_United_St...)