Patent Notices

These practice notices provide guidance on current patent practices and the interpretation of relevant legislation.

Official notices published on this page set forth Office practice as of their publication date. As mandated by the Patent Act and Rules, certain notices will also be published in the Canadian Patent Office Record (CPOR). In the event of any discrepancy between a notice on this web page and one in the CPOR, the version in the CPOR is the official version.

The practice notices below are intended to provide guidance on current CIPO practice and interpretation of relevant legislation and should not be quoted as, or considered to be, a legal authority. In the event of any inconsistency between the notices and the applicable legislation, the legislation must be followed. It is the responsibility of the applicant/patentee to decide how to proceed with respect to a particular application or other matter.


Practice Notices

Date Notice
Notice on Special Characters
Correspondence Procedures
2017-05-01 Notice regarding Patent Cooperation Treaty (PCT) national phase applications – evidence for 58(5) requisitions
2017-03-01 Notice concerning the process for the reissue of patents
2016-10-07 Update: Notice concerning the process for the issuance of patents
2016-08-16 Process for the issuance of patents
2016-06-30 Notice concerning transmitting PCT Rule 26bis.3 documents to the International Bureau
2016-06-30 Notice on delays in meeting PCT time limits due to a general unavailability of electronic communication services
2016-06-02 Notice on filing of certified electronic priority documents to the Canadian receiving Office
Update: Notice on biological sequence listings
Examination Practice Respecting Medical Diagnostic Methods – PN 2015-02
Notice on returning a granted patent certificate
Revised Examination Practice Respecting Medical Uses – PN 2015-01
Ownership information
Practice Guidance Following the Amazon FCA Decision
Correction of errors introduced in the naming of an applicant at the time of filing or national entry
Registration of assignments and correction of assignment-related information
List of Trademark Agents & Register of Patent Agents
Fee Payment Practice of the Canadian Intellectual Property Office
Fee Payment: General Authorization to Charge a Deficiency
Sequence Listings

Other Notices

Date Notice
2019-01-01 PCT Schedule of Fees (Effective: 2019-01-01)
2019 Patent Agent Examination
2018-06-29 2018 Trademark Agent Qualifying Examination
2017-06-30 2017 Trademark Agent Qualifying Examination
2016-06-30 2016 Trademark Agent Qualifying Examination
Returning a granted patent certificate
Green Patents: Coming into effect - Qs and As
Changes to IP Regulations: Rules Amending the Patent Rules, Expedited Examination of Patent Applications Relating to Green Technology
Expedited Examination of Patent Applications Relating to Green Technology: Instructions
Rules Amending the Patent Rules - Technical Corrections / Filing and Completion Requirements
Patent Maintenance Fees Electronic Payment system
Patent Cooperation Treaty (PCT) Application Tool
Rules Amending the Patent Rules - Sequence Listing Requirement for Patent Applications file in Canada under the Patent Cooperation Treaty (PCT)
Item 27 of the Tariff of Fees - provide information concerning the status of a patent application or patent
Notice of Decision of the Commissioner of Patents Concerning a Patent Agent
Government of Canada's Legislative Response to Recent Federal Court Decisions (entity size)
Canada signed Patent Law Treaty
Requirements for Filing Patents Applications in Canada
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