Canadian Patent Act and Patent Rules: Statutory Framework and Procedural Architecture
This domain tests whether you can navigate the Patent Act (R.S.C. 1985, c. P-4) and the Patent Rules (SOR/2019-251, in force 30 October 2019) as an integrated system: which provision governs a given act, what the deadlines are, and how the Act and Rules interact. Questions typically present a procedural scenario and ask for the controlling provision or the consequence of a missed step.
Core statutory concepts
- Section 2 definitions drive everything: "invention" means any new and useful art, process, machine, manufacture or composition of matter, or any new and useful improvement thereof; "patentee" includes the inventor's legal representative; "claim" means a claim in a patent or application.
- Section 27(1) sets the trio of patentability conditions (novelty, utility, inventive step) plus the subject-matter categories in s. 2. Section 27(3) prescribes the specification: a claim or claims, a description, and drawings where required, with claims "defining distinctly and in explicit terms the subject-matter of the invention."
- Section 27(4) allows a claim in respect of a machine to cover "the use of such machine" - a Canadian peculiarity worth remembering.
- Section 28.1 (novelty) and 28.2 (obviousness) use a common "claim date" concept defined in s. 28.1; 28.3 covers utility. Section 28.4 bars double patenting by conferring on the patentee the remedy of disclaimer.
- Section 28.2 was amended (2019) to codify the "problem-solution" approach and the "could have been adapted" question.
Key Rules mechanics
- Filing requirements (Rule 94), request for examination (Rule 133, due within 4 years of the filing date), and the Rule 86 maintenance fee schedule (anniversary-based, with a 6-month late-payment grace under Rule 87 and a further 12-month reinstatement window under Rule 88).
- Rule 100 sets the 12-month priority claim period; Rule 109 governs restoration of the right of priority.
- The Rule 30 "excess claims" fee and Rule 32 excess pages fee apply at filing.
- Rule 207 governs the national phase: 30 months from the priority date, extendable by 12 months on request with the prescribed fee.
Worked example
An applicant files a Canadian application on 1 March 2024 claiming priority from a US provisional filed 5 May 2023. The examiner issues a notice requiring a response within 4 months. The applicant misses the deadline by three weeks. Under Rule 73, the application is deemed abandoned; reinstatement requires a request under Rule 74 within 12 months of the abandonment date, payment of the reinstatement fee, and completion of the omitted act. If the omitted act was a response to an examiner's report, the applicant must also file the response. The priority claim is unaffected, but the abandonment period does not toll the 4-year examination deadline.
Traps
- Confusing the claim date (s. 28.1) with the filing date; a priority claim shifts the claim date to the priority filing date.
- Forgetting that s. 28.3 utility requires the invention to be useful as claimed at the claim date - not merely plausible.
- Treating the 30-month national phase deadline as absolute; it is extendable by 12 months under Rule 207.
- Missing that the Rule 87 6-month grace and the Rule 88 12-month reinstatement are sequential, not alternative.