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Official data from INPI

PROCESSO PARA A PRODUCAO DE SILICATOS DE ALUMINIO ZEOLITICOS,POBRES EM FERRO,E APLICACAO DO MESMO

Em AnáliseInvention Patent

Application data

Number

PI7705139

Type

Invention Patent

Filing

08/06/1976

Publication

-

Progress at the INPI

  1. Filing08/06/76
  2. Publication
  3. Examination
  4. Allowance08/02/83
  5. Grant01/31/84
  6. Terminated12/15/87

The patent was granted on 01/31/1984 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

DEGUSSA

H. K. (pessoa física)

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Inventors

C. P. (pessoa física)

S. G. (pessoa física)

W. K. (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

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/22/1983

RPI 683

Deferimento

#9.1

08/02/1983

RPI 667

Exigência - art. 36 da LPI

#6.1

12/29/1981

RPI 584

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