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Official data from INPI

APERFEICOAMENTO DO PROCESSO DE DESCARBURACAO DE ACOS AO CARBONO,ACOS DE BAIXA OU ALTA LIGA,PRODUZIDOS ATRAVES DE FORNOS ELETRICOS,SIEMENS MARTINS,CONVERTEDOR L.D.OU MESMO QUALQUER OUTRO TIPO DE FORNO UTILIZADO PARA TAL FIM

Em AnáliseInvention Patent

Application data

Number

PI7802015

Type

Invention Patent

Filing

03/31/1978

Publication

-

Progress at the INPI

  1. Filing03/31/78
  2. Publication
  3. Examination
  4. Refused03/13/90
  5. Grant
  6. In force

The application was refused on 03/13/1990 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LIQUID CARBONIC IND SA

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Petição de recurso

#12.2

05/30/1989

RPI 971

Indeferimento

#9.2

02/14/1989

RPI 956

11.8

08/04/1987

RPI 876

Retificação

#15.3

04/22/1987

RPI 861

Conhecimento de parecer técnico

#7.1

02/09/1982

RPI 590

111

03/13/1990

RPI 1009

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