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Official data from INPI

MONTAGEM DE QUEIMADOR DE GÁS PARA UM FORNO

Prazo de SigiloInvention Patent

Application data

Number

PI8804545

Type

Invention Patent

Filing

09/02/1988

Publication

04/24/1990

Progress at the INPI

  1. Filing09/02/88
  2. Publication04/24/90
  3. Examination06/30/92
  4. Allowance10/13/93
  5. Grant05/31/94
  6. Terminated06/25/96

The patent was granted on 05/31/1994 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcan International Limited

CA

See this company's full portfolio

Inventors

C. M. (pessoa física)

AU

G. J. (pessoa física)

AU

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

01/31/1989

RPI 954

Anuidade - prazo legal encerrado

#18.2

06/25/1996

RPI 1334

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

10/13/1993

RPI 1193

Solicitação de exame técnico

#4.1

06/30/1992

RPI 1126

Publicação do pedido de patente

#3.1

04/24/1990

RPI 1015

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