 That is, the invention must not have been described or claimed in a previously filed third party Canadian patent application, and must not have been previously publicly disclosed by a third party, anywhere in the world.The test for novelty is whether or not a single, publicly disclosed example of prior art "contained all of the information which, for practical purposes, is needed to produce the claimed invention without the exercise of any inventive skill".If a third party previously filed a Canadian patent application disclosing the invention, or if a third party document or device previously publicly disclosed the invention anywhere in the world, then a subsequently applied-for Canadian patent application for that invention is lacking in novelty and is invalid.