You have implied status as soon as you have submitted the application and your current visa expires.queenpies said:AOR is just an Acknowledgement of Receipt. It just means that CIC received the application and that you have submitted the complete package for the Family Sponsorship and is in the queue of waiting to be processed.
AOR doesn't mean you are on implied status. You can double check this, because I was told by the CIC call centre agent that I have to wait till it is Approved in Principle (AIP) then I will have temporary resident status, and if my visitor visa expired before AIP then I would be out of status.
If I want to remain in status the whole time, then I have to submit OPW application together with my Inland Sponsorship before my visitor visa expires. This way I will be on implied status as I am waiting for a reply from CIC about my application to OPW.
When the intial assessment is don't, AIP, you have temporary residency.
When the final stage of the application is done, you have permanent residency.
Even if implied status is a 100% legal status, it is not considered temporary residency in that sense.