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Official data from INPI

DISPOSITIVO UTILIZADO PARA RETIRADA DE BARRAS DE MOINHOS DE BARRAS

ConcedidaInvention Patent

Application data

Number

PI8506489

Type

Invention Patent

Filing

12/19/1985

Publication

07/07/1987

Progress at the INPI

  1. Filing12/19/85
  2. Publication07/07/87
  3. Examination02/23/88
  4. Allowance03/28/89
  5. Grant09/26/89
  6. Terminated03/10/92

The patent was granted on 09/26/1989 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica de Tubarão S/A - CST

ES, BR

See this company's full portfolio

Inventors

A. F. (pessoa física)

BR

C. P. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Deferimento

#9.1

03/28/1989

RPI 962

Solicitação de exame técnico

#4.1

02/23/1988

RPI 905

Publicação do pedido de patente

#3.1

07/07/1987

RPI 872

Pedido de patente depositado

#2.1

03/18/1986

RPI 804

Anuidade - prazo legal encerrado

#18.2

03/10/1992

RPI 1110

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