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Official data from INPI

PROCESSO PARA PREPARÇÃO DE BRINQUETES DE MATÉRIA BRUTA CONTENDO SILÍCIO E CARBONO E EMPREGO DE BRINQUETES DE MATÉRIA BRUTA.

ConcedidaInvention Patent
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Application data

Number

PI8101513

Type

Invention Patent

Filing

03/13/1981

Publication

-
View on INPI

Progress at the INPI

  1. Filing03/13/81
  2. Publication
  3. Examination12/08/81
  4. Allowance09/30/86
  5. Grant06/30/87
  6. Expired09/24/96

The letters patent expired on 09/24/1996: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Applied Industrial Materials Luxembourg S.A. (Aimcor Luxembourg S.A.)

LU

Coc-Luxembourg S.A.

Inventors

L. G. (pessoa física)

Technical data

IPC Classification

C22B 1/244

Priority claims

DE

P 30 09 808.9 · 03/14/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

03/04/1987

RPI 854

Deferimento

#9.1

09/30/1986

RPI 832

Exigência - art. 36 da LPI

#6.1

10/29/1985

RPI 784

Exigência - art. 36 da LPI

#6.1

10/16/1984

RPI 730

Solicitação de exame técnico

#4.1

12/08/1981

RPI 581

Carta-patente expirada

#21.1

09/24/1996

RPI 1347

20.4

11/03/1992

RPI 1144

20.4

10/27/1992

RPI 1143

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