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Official data from INPI

ESTRADO METÁLICO PARA EMBALAGEM DE BOBINAS COM EIXO NA VERTICAL.

ConcedidaUtility Model

Application data

Number

MU6500978

Type

Utility Model

Filing

07/16/1985

Publication

02/24/1987

Progress at the INPI

  1. Filing07/16/85
  2. Publication02/24/87
  3. Examination08/04/87
  4. Allowance10/04/88
  5. Grant07/25/89
  6. Expired10/03/95

The letters patent expired on 10/03/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - CSN

RJ, BR

Companhia Siderúrgica Nacional - Grupo Siderbrás

RJ, BR

See this company's full portfolio

Inventors

J. M. (pessoa física)

BR

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

01/24/1989

RPI 953

Deferimento

#9.1

10/04/1988

RPI 937

Exigência - art. 36 da LPI

#6.1

04/19/1988

RPI 913

Solicitação de exame técnico

#4.1

08/04/1987

RPI 876

Publicação do pedido de patente

#3.1

02/24/1987

RPI 853

Pedido de patente depositado

#2.1

10/01/1985

RPI 780

Carta-patente expirada

#21.1

10/03/1995

RPI 1296

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