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Official data from INPI

PISTÃO DE ALUMÍNIO COM FUNDO DE ÓXIDO DURO

ConcedidaInvention Patent

Application data

Number

PI8201954

Type

Invention Patent

Filing

04/06/1982

Publication

03/08/1983

Progress at the INPI

  1. Filing04/06/82
  2. Publication03/08/83
  3. Examination05/14/85
  4. Allowance07/08/86
  5. Grant03/17/87
  6. Terminated07/18/95

The patent was granted on 03/17/1987 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: 03/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mahle GMBH

DE

Mahle GMBH.

DE

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Inventors

D. S. (pessoa física)

DE

H. W. (pessoa física)

DE

R. H. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 31 14 124.2 · 04/08/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/17/1987

RPI 856

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

12/03/1985

RPI 789

Solicitação de exame técnico

#4.1

05/14/1985

RPI 760

Publicação do pedido de patente

#3.1

03/08/1983

RPI 646

Pedido de patente depositado

#2.1

05/25/1982

RPI 605

Anuidade - prazo legal encerrado

#18.2

07/18/1995

RPI 1285

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