Ballantyne v Aktiebolaget Separator [1915] HCA 20
On the evidence, the plaintiffs' invention was neither common knowledge nor anticipated by prior publications or existing machines; the construction of the patent specification was clear and limited to the relevant mechanical configuration, so the patent was valid and infringed by the appellants.
- Parties
- Appellants/defendants: Alfred Ballantyne and William Arthur Laing, trading as the Pump Separator Agency; Respondents/plaintiffs: Aktiebolaget Separator
- Jurisdiction
- Australia
- Judgment Date
- 26 March 1915
- Procedural Posture
- Appeal / On Appeal From the Supreme Court of Victoria
- Outcome
- Appeal dismissed
- Legal Topics
- Patent Validity, Prior Publication, Common Knowledge, Infringement
Case Brief
Summary, issues, holding and outcome
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Parties
Alfred Ballantyne and William Arthur Laing, trading as the Pump Separator Agency
Appellants/defendants
Aktiebolaget Separator
Respondents/plaintiffs
Procedural Posture
Appeal / On Appeal From the Supreme Court of Victoria
Legal Issues
- 1 Whether the plaintiffs' patent was invalid due to lack of novelty from common public knowledge or prior publication
- 2 Whether the alleged invention had been anticipated by previous inventions
- 3 Whether the defendants infringed the plaintiffs' patent
Ratio Decidendi
On the evidence, the plaintiffs' invention was neither common knowledge nor anticipated by prior publications or existing machines; the construction of the patent specification was clear and limited to the relevant mechanical configuration, so the patent was valid and infringed by the appellants.
Court Disposition
Appeal dismissed
Orders
- Appeal dismissed with costs.
Full Case Text
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