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Official data from INPI

PROCESSO PARA PARTIDA E PARADA DE CALDEIRA UTILIZANDO GÁS DE COQUERIA

Em ExigênciaInvention Patent

Application data

Number

PI8404602

Type

Invention Patent

Filing

09/14/1984

Publication

04/22/1986

Progress at the INPI

  1. Filing09/14/84
  2. Publication04/22/86
  3. Examination08/12/86
  4. Refused08/10/93
  5. Grant
  6. In force

The application was refused on 08/10/1993 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: 10/13/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Paulista - COSIPA

SP, BR

See this company's full portfolio

Inventors

N. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

10/13/1987

RPI 886

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

04/22/1986

RPI 809

Pedido de patente depositado

#2.1

11/20/1984

RPI 735

111

08/10/1993

RPI 1184

120

01/05/1993

RPI 1153

Petição de recurso

#12.2

02/19/1991

RPI 1055

Indeferimento

#9.2

08/07/1990

RPI 1027

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