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Official data from INPI

CATODO DE ELEMENTOS INDIVIDUALMENTE INTERCAMBIAVEIS PARA UMA CELULA ELETROLITUCA DE SAL FUNDIDO PARA A PRODUCAO DE ALUMINIO

Em AnáliseInvention Patent

Application data

Number

PI8103210

Type

Invention Patent

Filing

05/23/1980

Publication

02/16/1982

Progress at the INPI

  1. Filing05/23/80
  2. Publication02/16/82
  3. Examination06/29/82
  4. Allowance09/18/84
  5. Grant04/30/85
  6. Terminated09/06/88

The patent was granted on 04/30/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 09/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALUSUISSE

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Inventors

K. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/06/1988

RPI 933

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

01/15/1985

RPI 743

Deferimento

#9.1

09/18/1984

RPI 726

Exigência - art. 36 da LPI

#6.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Publicação do pedido de patente

#3.1

02/16/1982

RPI 591

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