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Official data from INPI

PROCESSO PARA A FUSAO CONTINUA E DIRETA DE CHUMBO METALICO DE MATERIAIS DE CHUMBO COM TEOR DE ENXOFRE

Em AnáliseInvention Patent
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Application data

Number

PI8104918

Type

Invention Patent

Filing

08/06/1980

Publication

04/13/1982
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Progress at the INPI

  1. Filing08/06/80
  2. Publication04/13/82
  3. Examination02/14/84
  4. Allowance11/12/85
  5. Grant06/24/86
  6. Terminated07/12/88

The patent was granted on 06/24/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

METALLGESELLSCHAFT AG

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Inventors

F. P. (pessoa física)

S. W. (pessoa física)

Technical data

IPC Classification

C22B 13/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/15/1986

RPI 808

Deferimento

#9.1

11/12/1985

RPI 786

Exigência - art. 36 da LPI

#6.1

01/29/1985

RPI 745

Exigência - art. 36 da LPI

#6.1

09/25/1984

RPI 727

Solicitação de exame técnico

#4.1

02/14/1984

RPI 695

Publicação do pedido de patente

#3.1

04/13/1982

RPI 599

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