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Official data from INPI

PROCESSO PARA FABRICAÇÃO DE BRIQUETES DE MATERIAIS CARBONÁCEOS

Em AnáliseInvention Patent

Application data

Number

PI8104166

Type

Invention Patent

Filing

06/30/1981

Publication

11/10/1981

Progress at the INPI

Technical opinion to answer
  1. Filing06/30/81
  2. Publication11/10/81
  3. Examination12/27/83
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical opinion on patentability. The applicant must respond for examination to continue.

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Latest action published by the INPI: 06/09/1987. 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

B. P. (pessoa física)

D. Y. (pessoa física)

D. F. (pessoa física)

M. U. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

06/09/1987

RPI 868

Conhecimento de parecer técnico

#7.1

06/02/1987

RPI 867

Conhecimento de parecer técnico

#7.1

05/07/1985

RPI 759

Pedido de certificado de adição de invenção

#5.1

05/22/1984

RPI 709

Solicitação de exame técnico

#4.1

12/27/1983

RPI 688

Publicação antecipada

#3.2

11/10/1981

RPI 577

Retificação

#15.3

03/26/1996

RPI 1321

Conhecimento de parecer técnico

#7.1

06/20/1995

RPI 1281

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