Patent Rules — Canada law | Esheria

Patent Rules

These Patent Rules set filing and communication requirements before the Patent Office, including translations, postal address information, patent agent appointments, and limits on single communications.

Jurisdiction
Canada
Instrument
Regulation
Version
26 May 2026
Language
en
Official source
View official record ↗
PCT national phase applications abandonment amendments application fees application formatting biological material deposits certificate issuance communications deadlines examination fees fee payment fee payments fees filing deadlines maintenance fees patent administration patent application procedure patent applications patent filings priority claims refunds representation representation before Patent Office translations +1 more

Statute overview

About this statute

These Patent Rules set filing and communication requirements before the Patent Office, including translations, postal address information, patent agent appointments, and limits on single communications. This provision sets representation rules for patent-related filings and communications, limits when communications will be ignored, allows some applicants to act for themselves, and lets the Commissioner require notices, translations, or access in specified cases. This provision sets patent application examination rules, deadlines, fees, amendment limits, and Commissioner/examiner notice powers. This provision sets procedures for additional patent terms, including correction of patent-number errors, fee rules, notices, observations, certificates, and related Patent Office administration. This provision sets patent-related fees, refund limits, waiver powers, and PCT national phase filing and translation requirements.

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