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Official data from INPI

SISTEMA DE DOSAGEM AUTOMÁTICA DE ÁGUA EM CALHAS DE TRANSFERÊNCIA DE CORREIAS TRANSPORTADORAS

ConcedidaInvention Patent

Application data

Number

PI8305944

Type

Invention Patent

Filing

10/27/1983

Publication

06/04/1985

Progress at the INPI

  1. Filing10/27/83
  2. Publication06/04/85
  3. Examination11/24/87
  4. Allowance08/23/88
  5. Grant07/25/89
  6. Terminated04/23/96

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

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

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Inventors

D. C. (pessoa física)

S. D. (pessoa física)

Technical data

IPC Classification

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

12/13/1988

RPI 947

Deferimento

#9.1

08/23/1988

RPI 931

Solicitação de exame técnico

#4.1

11/24/1987

RPI 892

11.8

09/15/1987

RPI 882

Retificação

#15.3

07/21/1987

RPI 874

Publicação do pedido de patente

#3.1

06/04/1985

RPI 763

Pedido de patente depositado

#2.1

01/17/1984

RPI 691

Anuidade - prazo legal encerrado

#18.2

04/23/1996

RPI 1325

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