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Official data from INPI

SISTEMA DE VEDAÇÃO AUXILIAR EM CILINDROS HIDRÁULICOS

ConcedidaInvention Patent

Application data

Number

PI8201254

Type

Invention Patent

Filing

03/09/1982

Publication

11/01/1983

Progress at the INPI

  1. Filing03/09/82
  2. Publication11/01/83
  3. Examination11/26/85
  4. Allowance09/08/87
  5. Grant08/29/89
  6. Terminated07/18/95

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

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

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Inventors

L. P. (pessoa física)

BR

N. R. (pessoa física)

BR

Technical data

IPC Classification

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

11/01/1988

RPI 941

Deferimento

#9.1

09/08/1987

RPI 881

Solicitação de exame técnico

#4.1

11/26/1985

RPI 788

Solicitação de exame não realizada

#4.2

07/30/1985

RPI 771

Publicação do pedido de patente

#3.1

11/01/1983

RPI 680

Pedido de patente depositado

#2.1

04/20/1982

RPI 600

Anuidade - prazo legal encerrado

#18.2

07/18/1995

RPI 1285

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