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Official data from INPI

PROCESSO E DISPOSITIVO DE PERFURAÇAO DO SOLO.

ConcedidaInvention Patent

Application data

Number

PI8303717

Type

Invention Patent

Filing

07/12/1983

Publication

02/20/1985

Progress at the INPI

  1. Filing07/12/83
  2. Publication02/20/85
  3. Examination02/24/87
  4. Allowance08/09/88
  5. Grant04/25/89
  6. Terminated04/09/96

The patent was granted on 04/25/1989 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: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Electricite de France (Service National)

FR

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Inventors

D. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/25/1989

RPI 966

Notificação para pagamento de retribuição

#13.1

12/06/1988

RPI 946

Deferimento

#9.1

08/09/1988

RPI 929

Exigência - art. 36 da LPI

#6.1

01/12/1988

RPI 899

Solicitação de exame técnico

#4.1

02/24/1987

RPI 853

Publicação do pedido de patente

#3.1

02/20/1985

RPI 748

Pedido de patente depositado

#2.1

09/20/1983

RPI 674

Anuidade - prazo legal encerrado

#18.2

04/09/1996

RPI 1323

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