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Official data from INPI

PROCESSO E INSTALAÇÀO PARA OBTENÇÃO E RECIRCULAÇÃO DE ÁGUA DESMINARELIZADA EM SELOS MECÂNICOS DE BOMBAS

ConcedidaInvention Patent

Application data

Number

PI8200073

Type

Invention Patent

Filing

01/08/1982

Publication

09/13/1983

Progress at the INPI

  1. Filing01/08/82
  2. Publication09/13/83
  3. Examination11/26/85
  4. Allowance01/13/87
  5. Grant03/29/88
  6. Terminated10/29/96

The patent was granted on 03/29/1988 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: 03/29/1988. 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

J. S. (pessoa física)

MG

M. T. (pessoa física)

MG

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1988

RPI 910

15.19

12/08/1987

RPI 894

Retificação

#15.3

10/06/1987

RPI 885

Notificação para pagamento de retribuição

#13.1

06/09/1987

RPI 868

Deferimento

#9.1

01/13/1987

RPI 847

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

09/13/1983

RPI 673

Pedido de patente depositado

#2.1

03/02/1982

RPI 593

Anuidade - prazo legal encerrado

#18.2

10/29/1996

RPI 1352

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