In the patent application for Chinese patent CN1470762 I found the following note:
Sep 3, 2008 C02 Deemed withdrawal of patent application after publication (patent law 2001)

I need to know what that means and what effect it has on other patents including as prior art.

  • Once something is published it stays published and its status as prior art is not changed by subsequent events. Not every application end up resulting in a granted patent. – George White Sep 21 '14 at 6:05

If the patent have been published it can be used a prior art, regardless of the status of the application.

Filing patents without follow up is sometime done as a defensive measure -- See also the answers here


That means that the patent application was abandoned in China. But as Soren points out, this does not change its value as prior art.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.