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Official data from INPI

RASPADOR DE CORREIAS TRANSPORTADORAS

Prazo de SigiloInvention Patent

Application data

Number

PI8705364

Type

Invention Patent

Filing

10/08/1987

Publication

04/25/1989

Progress at the INPI

  1. Filing10/08/87
  2. Publication04/25/89
  3. Examination01/22/91
  4. Allowance12/10/91
  5. Grant01/26/93
  6. Terminated06/25/96

The patent was granted on 01/26/1993 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: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - Usiminas

MG, BR

See this company's full portfolio

Inventors

A. B. (pessoa física)

BR

G. O. (pessoa física)

BR

W. G. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

04/25/1989

RPI 966

Publicação do pedido de patente

#3.1

04/25/1989

RPI 966

Pedido de patente depositado

#2.1

01/05/1988

RPI 898

Anuidade - prazo legal encerrado

#18.2

06/25/1996

RPI 1334

Concessão da patente

#16.1

01/26/1993

RPI 1156

Republicação - classificação IPC

#15.11

10/06/1992

RPI 1140

Notificação para pagamento de retribuição

#13.1

09/08/1992

RPI 1136

Deferimento

#9.1

12/10/1991

RPI 1097

Solicitação de exame técnico

#4.1

01/22/1991

RPI 1051

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