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Official data from INPI

PROCESSO PARA LIGAR TIPOS DIFERENTES DE METAIS ENQUANTO MANTENDO UMA CONDICAO ELETRICAMENTE ISOLADA ENTRE OS MESMOS

ConcedidaInvention Patent

Application data

Number

PI8302388

Type

Invention Patent

Filing

05/07/1982

Publication

01/10/1984

Progress at the INPI

  1. Filing05/07/82
  2. Publication01/10/84
  3. Examination04/24/84
  4. Allowance03/01/88
  5. Grant09/27/88
  6. Terminated04/25/95

The patent was granted on 09/27/1988 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MITSUBISHI HEAVY IND LTD [JP]

Inventors

O. S. (pessoa física)

T. T. (pessoa física)

W. Y. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

06/21/1988

RPI 922

Deferimento

#9.1

03/01/1988

RPI 906

Exigência - art. 36 da LPI

#6.1

09/03/1985

RPI 776

Solicitação de exame técnico

#4.1

04/24/1984

RPI 705

Publicação do pedido de patente

#3.1

01/10/1984

RPI 690

Pedido de patente depositado

#2.1

06/21/1983

RPI 661

Anuidade - prazo legal encerrado

#18.2

04/25/1995

RPI 1273

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