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Official data from INPI

MÉTODO E APARELHO PARA DETERMINAÇÃO INSTRUMENTAL DO ÍNDICE DE DIFUSÃO DO HIDROGÊNIO EM CHAPAS METÁLICAS NÃO-REVESTIDAS

IndeferidaInvention Patent

Application data

Number

PI8101162

Type

Invention Patent

Filing

02/26/1981

Publication

11/03/1981

Progress at the INPI

Under appeal
  1. Filing02/26/81
  2. Publication11/03/81
  3. Examination09/27/83
  4. Refused09/24/85
  5. Grant
  6. In force

The application was refused by the INPI on 09/24/1985. The invention was never patented.

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Latest action published by the INPI: 09/24/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

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Inventors

D. J. (pessoa física)

D. J. (pessoa física)

T. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

09/24/1985

RPI 779

Conhecimento de parecer técnico

#7.1

12/18/1984

RPI 739

Solicitação de exame técnico

#4.1

09/27/1983

RPI 675

Publicação antecipada

#3.2

11/03/1981

RPI 576

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