BackDate of JudgmentDecember 19, 1974Issuing AuthoritySupreme Court of CanadaLevel of the Issuing AuthorityFinal InstanceType of ProcedureJudicial (Civil)Subject MatterPatents (Inventions)Plaintiff/AppellantBurton Parsons Chemicals, Inc. and Burton Parsons and Company of Canada, LimitedDefendant/RespondentHewlett-Packard (Canada) Ltd. and X-Ray and Radium LimitedKeywords