Originally Posted by alansplace
Wow, a blast rom the past (the 60's) and one of the very first kindle books I got (it was and still is FREE!
) and re-read. Here's the free amazon link - The Door Through Space
by Marion Zimmer Bradley (gotta spell her name correctly
It's certainly out of copyright in the US, as the copyright wasn't renewed. However, it's not out of copyright in the UK.
It was published in 1961. When the copyright wasn't renewed, it fell into the US public domain 28 years later in 1989. However, in 1989 the rule of the shorter term did not apply in the UK, and so it's in copyright in the UK until 70 years after the authors death, and will enter public domain in the UK in 2070.