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Official data from INPI

INSERÇÃO PARA PISTÕES DE MOTORES DIESEL DE LIGAS DE ALUMÍNIO-SILÍCIO.

ConcedidaInvention Patent

Application data

Number

PI8306735

Type

Invention Patent

Filing

12/07/1983

Publication

07/17/1984

Progress at the INPI

  1. Filing12/07/83
  2. Publication07/17/84
  3. Examination11/27/84
  4. Allowance08/02/88
  5. Grant07/25/89
  6. Terminated05/09/95

The patent was granted on 07/25/1989 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. P. (pessoa física)

FR

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Inventors

H. N. (pessoa física)

M. J. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

82 20 892 · 12/08/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

11/29/1988

RPI 945

Deferimento

#9.1

08/02/1988

RPI 928

6.2

01/12/1988

RPI 899

Solicitação de exame técnico

#4.1

11/27/1984

RPI 736

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

20.4

04/28/1992

RPI 1117

20.4

04/21/1992

RPI 1116

20.7

04/21/1992

RPI 1116

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