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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

PI7802014

Type

Invention Patent

Filing

03/31/1978

Publication

-

Progress at the INPI

  1. Filing03/31/78
  2. Publication
  3. Examination
  4. Refused06/27/89
  5. Grant
  6. In force

The application was refused on 06/27/1989 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/27/1989. 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).

111

06/27/1989

RPI 975

Petição de recurso

#12.2

08/16/1988

RPI 930

Indeferimento

#9.2

04/26/1988

RPI 914

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

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