This is not true. Implied status goes into effect as long as they receive the application BEFORE your status. If your application is returned then you lose any implied status. Implied status does not take effect after AORI think I read you post properly. So, the implied status just starts when they start to process your application and not when they receive it. That is the reason why a lot of people apply for an extension of visitor permit to guarantee that they have still have status when immigration starts processing the application