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Official data from INPI

SISTEMA DE ALIMENTAÇÃO DE GÁS DE COQUERIA PARA OS FORNOS DE RECOZIMENTO

Prazo de SigiloUtility Model

Application data

Number

MU6802065

Type

Utility Model

Filing

09/15/1988

Publication

05/08/1990

Progress at the INPI

  1. Filing09/15/88
  2. Publication05/08/90
  3. Abandoned11/20/90
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - CSN

RJ, BR

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Inventors

M. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

12/13/1988

RPI 947

Arquivamento - Art. 36 §1° da LPI

#11.2

11/14/2000

RPI 1558

Exigência - art. 36 da LPI

#6.1

12/14/1999

RPI 1510

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

Publicação do pedido de patente

#3.1

05/08/1990

RPI 1017

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