Breveté SGDG

Breveté SGDG was a French type of patent that ceased to exist in 1968. The name was a common abbreviation for "Breveté Sans Garantie Du Gouvernement“ (patent without government guarantees).
France and Belgium maintained a system of simple registration of patents. It was believed that patents registered in this way are free from any liability from the government perspective.
In France, the law of 1844 states that patents are issued "without prior examination, at the risk of the applicant and with no guarantee of function, novelty and merit of the invention also in terms of precision or accuracy of the description".[1][2][3][4]
In Belgium, a similar regulation was in place in article 22 of the 1984 Patents Act,[5] and, as of 2019, is still in place.[6]


  1. Hellemans, W (1990). International Communication in Patent Matters. Dordrecht, Martinus Nijhoff Publishers. pp. 159–160. ISBN 0-7923-1435-2.
  2. Perpigna, Antoine (1847). Manuel des inventeurs et des brevetés (in French). chez l'auteur.
  3. Guyot, Yves (1867). L'Inventeur. (Développement des Forces Individuelles-L'Inventeur et la Famille-Les Négations-L'Inventeur et la Science Officielle, etc.) (in French).
  4. Pelletier, Michel (1893). Droit industriel, brevets d'invention, marques de fabrique, modèles et dessins, nom commercial, concurrence déloyale (in French). Baudry et cie.
  5. "ARCHIVE - ARCHIEF". Retrieved 2019-07-18.
  6. "Code de droit économique". Justel. 19 June 2019. Art. XI.24. § 4. Retrieved 20 July 2019. (French) La délivrance des brevets se fait sans examen préalable de la brevetabilité des inventions, sans garantie du mérite des inventions ou de l'exactitude de la description de celles-ci et aux risques et périls des demandeurs./ (Dutch) De verlening van de octrooien geschiedt zonder voorafgaand onderzoek van hun octrooieerbaarheid, zonder waarborg voor hun waarde of van de juistheid van de beschrijving der uitvindingen en op eigen risico van de aanvrager

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