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Official data from INPI

SISTEMA DE RECUPERAÇÃO DE ELETRÓLITO DA CROMAGEM

IndeferidaInvention Patent

Application data

Number

PI8200127

Type

Invention Patent

Filing

01/12/1982

Publication

09/13/1983

Progress at the INPI

Under appeal
  1. Filing01/12/82
  2. Publication09/13/83
  3. Examination03/05/85
  4. Refused07/14/87
  5. Grant
  6. In force

The application was refused by the INPI on 07/14/1987. The invention was never patented.

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Latest action published by the INPI: 07/14/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - CSN

RJ, BR

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Inventors

D. G. (pessoa física)

BR

E. M. (pessoa física)

BR

J. L. (pessoa física)

BR

R. N. (pessoa física)

BR

V. C. (pessoa física)

BR

W. T. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

07/14/1987

RPI 873

Conhecimento de parecer técnico

#7.1

08/19/1986

RPI 826

Exigência - art. 36 da LPI

#6.1

10/01/1985

RPI 780

Solicitação de exame técnico

#4.1

03/05/1985

RPI 750

Publicação do pedido de patente

#3.1

09/13/1983

RPI 673

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