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Official data from INPI

DISPOSITIVO DE ISOLAMENTO.

ConcedidaInvention Patent

Application data

Number

PI8101941

Type

Invention Patent

Filing

03/31/1981

Publication

10/06/1981

Progress at the INPI

  1. Filing03/31/81
  2. Publication10/06/81
  3. Examination11/29/83
  4. Allowance09/25/84
  5. Grant05/28/85
  6. Terminated08/23/94

The patent was granted on 05/28/1985 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: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Electricite De France ( Service National)

Electricite D'Exploitation de Brevets Pour L'Industrie et la Marine.

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Inventors

C. J. (pessoa física)

G. F. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

80 07459 · 04/02/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

01/29/1985

RPI 745

Deferimento

#9.1

09/25/1984

RPI 727

Exigência - art. 36 da LPI

#6.1

05/02/1984

RPI 706

Solicitação de exame técnico

#4.1

11/29/1983

RPI 684

Publicação do pedido de patente

#3.1

10/06/1981

RPI 572

Anuidade - prazo legal encerrado

#18.2

08/23/1994

RPI 1238

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