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Official data from INPI

PROCESSO PARA A RECUPERAÇÃO DOS TEORES DE TUNGSTÊNIO EXISTENTE NUM MINÉRIOS OU NUM CONCENTRADO RICO EM TUNGSTÊNIO.

ArquivadaInvention Patent

Application data

Number

PI7907441

Type

Invention Patent

Filing

11/14/1979

Publication

-

Progress at the INPI

  1. Filing11/14/79
  2. Publication
  3. Abandoned
  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: 09/01/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Anglo American Corporation Of South Africa Limited

ZA

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Inventors

J. G. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

ZA

78/6478 · 11/17/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

09/01/1987

RPI 880

Exigência - art. 36 da LPI

#6.1

11/04/1986

RPI 837

Conhecimento de parecer técnico

#7.1

12/11/1984

RPI 738

6.2

03/01/1983

RPI 645

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