11. Electronic wallet gets unlocked when a fixed period fare expires. 12. The same rules apply where the agent, renounces an agency for a fixed period . 13. For a fixed period each day, he would worship, teach and preach in the synagogue. 14. Houses are sold to families without profit, and no-interest mortgages are issued over a fixed period . 15. Some pieces of software allow a free trial which ends after a fixed period of time. 16. Cyclic data cannot be accounted for using ordinary seasonal adjustment since it is not of fixed period . 17. The Statute of Anne gave the publishers rights for a fixed period , after which the copyright expired. 18. The latter occurs when the data exhibits rises and falls that are not of a fixed period . 19. "We only said, ` Get some rest, "'the surgeon said, adding there was no fixed period necessary. 20. The game lasts for a fixed period of game time, such as one month or three years.