The query of patent number 201420441691showed no results. Is this patent number true?

There are generally two possibilities. One is the search system or information base, but this may be small. Second, this number is the application number, not the patent number. Failure to pay the application fee after application, or failure to go through the relevant formalities and pay the relevant fees upon authorization, shall be deemed as abandonment. The latter reason will not be discovered because there is no announcement.