What is the best moment to decide to try to get patent protection in other countries?

The best time to decide whether patent protection will be sought in other countries is close to the end of the priority year. This is because at that time the results of the novelty investigation will be given if it was petitioned for on the same time as the patent protection was filed. The results of the novelty investigation may contain very important information that can be of primary importance in deciding whether or not to continue with the process of protection. Beside, by filling a petition in other countries close to the end of the priority year can suspend expenses for the period of one year.