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Official data from INPI

CHAPAS DE AÇO REVESTIDA COM ESTANHOS E CROMO E PROCESSO DE DEPOSIÇÃO DO REVESTIMENTO.

IndeferidaInvention Patent

Application data

Number

PI8101699

Type

Invention Patent

Filing

03/23/1981

Publication

11/03/1982

Progress at the INPI

Under appeal
  1. Filing03/23/81
  2. Publication11/03/82
  3. Examination11/22/83
  4. Refused03/25/86
  5. Grant
  6. In force

The application was refused by the INPI on 03/25/1986. The invention was never patented.

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Latest action published by the INPI: 03/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - CSN

RJ, BR

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Inventors

L. F. (pessoa física)

M. D. (pessoa física)

N. G. (pessoa física)

O. (pessoa física)

R. S. (pessoa física)

V. S. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

03/25/1986

RPI 805

Republicação - classificação IPC

#15.11

12/18/1984

RPI 739

Conhecimento de parecer técnico

#7.1

09/11/1984

RPI 725

Solicitação de exame técnico

#4.1

11/22/1983

RPI 683

Publicação do pedido de patente

#3.1

11/03/1982

RPI 628

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