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Official data from INPI

Processo contínuo para extração de óxido de alumínio de bauxita.

ArquivadaInvention Patent

Application data

Number

PI8300024

Type

Invention Patent

Filing

01/05/1983

Publication

08/14/1984

Progress at the INPI

  1. Filing01/05/83
  2. Publication08/14/84
  3. Examination04/02/85
  4. Allowance12/29/87
  5. Abandoned
  6. In force

The application was allowed on 12/29/1987 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 11/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcoa Chemie GMBH

Inventors

P. H. (pessoa física)

T. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

11/08/1988

RPI 942

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

11/05/1985

RPI 785

Solicitação de exame técnico

#4.1

04/02/1985

RPI 754

Publicação do pedido de patente

#3.1

08/14/1984

RPI 721

Pedido de patente depositado

#2.1

02/22/1983

RPI 644

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