Several Patent Offices operate a deferred patent examination system under which patent applications remain dormant until the applicant takes steps for the application to be examined. A request to this effect may be lodged at any time before the due date mentioned in our filing report letter. If a request for examination is not lodged within this period, the application lapses.

The following comments may help applicants to decide how to proceed:

  1. If the invention is of immediate commercial value in the country concerned and is likely to result in a strong patent,
    it would be desirable to initiate an examination request at an early stage.
  2. If the invention is of commercial value but the outcome of the application is open to doubt, the best course may be
    to do nothing to speed its examination and rely on its deterrent effect. At least in the major countries which operate
    the deferred examination system, including Canada, China, France, Germany, Japan, Russia and South Korea, all patent applications are laid open to public inspection at an early stage.
  3. If the commercial value of the invention is as yet uncertain, expense will be saved or postponed by leaving the application dormant as long as possible or until the doubt is resolved.

If you need further advice, please contact us to see how we can help.

This information is simplified and should not be taken as a definitive statement of law of practice. 

Topics: Patents - General , IP Protection

Our People

Our IP specialists work at all stage of the IP life cycle and provide strategic advice about patent, trade mark and registered designs, as well as any IP-related disputes and legal and commercial requirements.

OUR PEOPLE

News & Insights

Read our blogs to keep up to date with developments in the IP world and what we are up to at Mewburn Ellis.

Contact Us

We have an easily-accessible office in central London, as well as a number of regional offices throughout the UK and an office in Munich, Germany.  We’d love to hear from you, so please get in touch.