Pursuant to the Canadian Trademark Regulations, the Canadian Intellectual Property Office (CIPO) only corresponds with the applicant or its appointed Canadian trademark agent residing in Canada. In other words, CIPO does not correspond with an applicant’s foreign representative.

If a foreign representative is included in the designation notification from the International Bureau, CIPO issues, for now, a courtesy letter informing the foreign representative that further correspondence regarding the application will be sent to the applicant or its appointed Canadian trademark agent. No further communication will be sent to the foreign representative by CIPO. Any notices issued by CIPO regarding the Protocol application will be sent to the applicant or its appointed Canadian trademark agent. These include notices setting administrative or statutory deadlines, as the case may be (Examiner’s report, Notice of Default, Refusal). None of these notices will be sent to WIPO.

Ultimately, the safest way to be informed of any developments in the prosecution of a Protocol application in Canada is to appoint a Canadian trademark agent. 

Thus, ensuring that you receive all CIPO’S communications (instead of your clients directly)