Patent invalidity. Document requirements for claiming and its effects. Novelty of the patent and its effects. Error in the appraisal of the evidence: impossibility to support with expert evidence. Scope of the article 1214 of the Civil Code concerning appealing. Private document: scope of the evidence. Arts. 504, 506.3º, 632 and 1692.4º of the Civil Procedure Code; art 9, 49, 68 and 115 of the Industrial Property Statute; and 1214 and 1225 of the Civil Code.
