Dominion Auto Accessories Ltd. v. De Frees et al.

Dominion Auto Accessories Ltd. v. De Frees et al.

The Exchequer Court correctly found that the claimed removable sealing device was not anticipated by prior art and embodied inventive ingenuity beyond an obvious workshop improvement, therefore the patent was valid and, given the appellant's concession, infringed.

Citation
[1965] SCR 599
Parties
Appellant / Defendant: Dominion Auto Accessories Ltd.; Respondent / Plaintiff: Barbara B. De Frees; Respondent / Plaintiff: Betts Machine Company
Court
Supreme Court of Canada
Jurisdiction
Canada
Judgment Date
7 June 1965
Procedural Posture
Patent Infringement (appeal) / Appeal to the Supreme Court of Canada From Exchequer Court Judgment on Patent Validity and Infringement
Outcome
Appeal dismissed; judgment of the Exchequer Court (Noël J.) affirmed.
Legal Topics
Patent Validity, Anticipation (novelty), Inventive Step / Obviousness, Workshop Improvement, Infringement, Claims Construction
Source Language
English
Intellectual Property Patents Patent Validity Anticipation (novelty) Inventive Step / Obviousness Workshop Improvement Infringement Claims Construction

Case Brief

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Parties

Dominion Auto Accessories Ltd.

Appellant / Defendant

Barbara B. De Frees

Respondent / Plaintiff

Betts Machine Company

Respondent / Plaintiff

Procedural Posture

Patent Infringement (appeal) / Appeal to the Supreme Court of Canada From Exchequer Court Judgment on Patent Validity and Infringement

Legal Issues

  1. 1 Whether Canadian Letters Patent No. 522,093 was valid
  2. 2 Whether the patent claim had been anticipated by prior art
  3. 3 Whether the claimed device constituted an obvious workshop improvement (lack of inventive ingenuity)

Ratio Decidendi

The Exchequer Court correctly found that the claimed removable sealing device was not anticipated by prior art and embodied inventive ingenuity beyond an obvious workshop improvement, therefore the patent was valid and, given the appellant's concession, infringed.

Court Disposition

Appeal dismissed; judgment of the Exchequer Court (Noël J.) affirmed.

Orders

  • Appeal dismissed with costs
  • Judgment of Noël J. in Exchequer Court affirmed