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Official data from INPI

DISPOSITIVO PARA FILTRAR LAMAS,ESPECIALMENTE LAMAS DE MINERIO DE FERRO E PARA PRODUZIR CORPOS MOLDADOS DO BOLO DE FILTRAGEM,RESULTANTE DA FILTRAGEM

Em AnáliseInvention Patent

Application data

Number

PI7708769

Type

Invention Patent

Filing

12/29/1977

Publication

-

Progress at the INPI

  1. Filing12/29/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant01/25/83
  6. Terminated12/15/87

The patent was granted on 01/25/1983 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KLOECKNER HUMBOLDT DEUTZ AG

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Inventors

D. M. (pessoa física)

G. L. (pessoa física)

I. F. (pessoa física)

P. P. (pessoa física)

R. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

22.9

03/29/1983

RPI 649

Concessão da patente

#16.1

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

11/03/1981

RPI 576

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