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Official data from INPI

CONJUNTO DE GASEIFICAÇÃO DE MADEIRA PARA OBTENÇÃO DE GÁS DE SÍNTESE OU DE GÁ S POBRE, ISENTOS DE ALCATRÕES

Em AnáliseInvention Patent

Application data

Number

PI8305107

Type

Invention Patent

Filing

09/15/1983

Publication

04/23/1985

Progress at the INPI

  1. Filing09/15/83
  2. Publication04/23/85
  3. Examination07/08/86
  4. Allowance06/20/89
  5. Grant03/20/90
  6. Terminated05/02/95

The patent was granted on 03/20/1990 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CESP - Companhia Energética de São Paulo

SP, BR

See this company's full portfolio

Inventors

H. L. (pessoa física)

BR

J. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

10/17/1989

RPI 991

Deferimento

#9.1

06/20/1989

RPI 974

Exigência - art. 36 da LPI

#6.1

01/31/1989

RPI 954

Solicitação de exame técnico

#4.1

07/08/1986

RPI 820

Publicação do pedido de patente

#3.1

04/23/1985

RPI 757

Pedido de patente depositado

#2.1

11/06/1984

RPI 733

Anuidade - prazo legal encerrado

#18.2

05/02/1995

RPI 1274

Concessão da patente

#16.1

03/20/1990

RPI 1010

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