revocability การใช้

• The issue of revocability has not been clarified today.
• Revocability applies only as long as the one who took out the policy is still alive.
• Limitations of time were upheld as valid by the High Court in 1964, although the general issue of revocability was not resolved.
• I don't see any implied copyright-related limitations on that licence statement ( like duration, commercial works, revocability, etc . ).