Wandscheer et al. v. Sicard Ltd.

Wandscheer et al. v. Sicard Ltd.

Majority: Wandscheer patent invalid for lack of inventive ingenuity and anticipation; Curtis patent invalid because the rotating ejector claimed was inoperative or its utility not demonstrated and the specification failed to enable a skilled person to construct a workable rotary discharge — Curtis disclosed an idea but left the task of working it out; accordingly the appeals were dismissed. Dissent: two judges would have found Curtis patent valid and infringed, holding that the combination was inventive and the specification, construed benevolently and with evidence, sufficient.

Citation
[1948] SCR 1
Parties
Appellants/plaintiffs: Daniel Wandscheer et al. (Klauer Manufacturing Company); Respondent/defendant: Sicard Limited
Court
Supreme Court of Canada
Jurisdiction
Canada
Judgment Date
22 December 1947
Procedural Posture
Patent Infringement (snow Removers) / Appeal to Supreme Court of Canada From Exchequer Court
Outcome
Appeal dismissed; judgment of Exchequer Court affirmed by majority (Wandscheer patent invalid; Curtis patent held invalid for insufficiency/inoperability); two judges dissenting would have allowed appeal on Curtis patent and found infringement.
Legal Topics
Novelty, Subject Matter, Utility, Infringement, Anticipation, Sufficiency of Specification
Source Language
English
Intellectual Property Patent Law Novelty Subject Matter Utility Infringement Anticipation Sufficiency of Specification

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Parties

Daniel Wandscheer et al. (Klauer Manufacturing Company)

Appellants/plaintiffs

Sicard Limited

Respondent/defendant

Procedural Posture

Patent Infringement (snow Removers) / Appeal to Supreme Court of Canada From Exchequer Court

Legal Issues

  1. 1 Whether Wandscheer patent disclosed patentable subject-matter and inventive ingenuity
  2. 2 Whether Curtis patent was novel or anticipated by prior art
  3. 3 Whether Curtis patent was operative and possessed utility (sufficiency of specification for rotary ejector)

Ratio Decidendi

Majority: Wandscheer patent invalid for lack of inventive ingenuity and anticipation; Curtis patent invalid because the rotating ejector claimed was inoperative or its utility not demonstrated and the specification failed to enable a skilled person to construct a workable rotary discharge — Curtis disclosed an idea but left the task of working it out; accordingly the appeals were dismissed. Dissent: two judges would have found Curtis patent valid and infringed, holding that the combination was inventive and the specification, construed benevolently and with evidence, sufficient.

Court Disposition

Appeal dismissed; judgment of Exchequer Court affirmed by majority (Wandscheer patent invalid; Curtis patent held invalid for insufficiency/inoperability); two judges dissenting would have allowed appeal on Curtis patent and found infringement.

Orders

  • Appeal dismissed with costs to respondent
  • Lower court judgment affirmed