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Official data from INPI

FERRAMENTA PARA FURO DE MINA

ConcedidaInvention Patent

Application data

Number

PI8306799

Type

Invention Patent

Filing

12/12/1983

Publication

07/17/1984

Progress at the INPI

  1. Filing12/12/83
  2. Publication07/17/84
  3. Examination08/12/86
  4. Allowance12/27/88
  5. Grant08/29/89
  6. Terminated05/09/95

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

A. J. (pessoa física)

NL

P. V. (pessoa física)

NL

R. N. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

GB

8235500 · 12/13/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

05/02/1989

RPI 967

Deferimento

#9.1

12/27/1988

RPI 949

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

07/17/1984

RPI 717

Pedido de patente depositado

#2.1

02/21/1984

RPI 696

Anuidade - prazo legal encerrado

#18.2

05/09/1995

RPI 1275

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