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Official data from INPI

VÁLVULA ANTI-RETORNO, DISPOSITIVO PARA A INJEÇÃO DE EXTRATO NO LADO EXTERNO DE UMA ESTACA TUBULAR CRAVADA NO SOLO COM O AUXÍLIO DE PELO MENOS UMA VÁLVULA ANTI-RETORNO, E, ESTACA-TUBULAR

DeferidaInvention Patent

Application data

Number

PI8504193

Type

Invention Patent

Filing

08/30/1985

Publication

06/24/1986

Progress at the INPI

  1. Filing08/30/85
  2. Publication06/24/86
  3. Examination09/30/86
  4. Allowance12/05/89
  5. Grant06/26/90
  6. Terminated08/08/95

The patent was granted on 06/26/1990 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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Soletanche

FR

Inventors

H. B. (pessoa física)

FR

J. G. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

84 13500 · 08/31/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

12/05/1989

RPI 998

6.2

05/02/1989

RPI 967

Solicitação de exame técnico

#4.1

09/30/1986

RPI 832

Publicação do pedido de patente

#3.1

06/24/1986

RPI 818

Pedido de patente depositado

#2.1

10/29/1985

RPI 784

Anuidade - prazo legal encerrado

#18.2

08/08/1995

RPI 1288

Concessão da patente

#16.1

06/26/1990

RPI 1024

Notificação para pagamento de retribuição

#13.1

04/10/1990

RPI 1013

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