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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE DISPERSÕES FINAMENTE DISTRIBUÍDAS DE ÓXIDOS DE METAL E/OU HIDRÓXIDOS DE METAL EM HIDRÓXIDO DE ALUMÍNIO

ConcedidaInvention Patent

Application data

Number

PI8400907

Type

Invention Patent

Filing

02/27/1984

Publication

10/09/1984

Progress at the INPI

  1. Filing02/27/84
  2. Publication10/09/84
  3. Examination03/18/86
  4. Allowance03/14/89
  5. Grant11/28/89
  6. Terminated06/06/95

The patent was granted on 11/28/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

V. A. (pessoa física)

DE

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Inventors

D. B. (pessoa física)

DE

D. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 33 08 008.9 · 03/07/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/19/1989

RPI 987

9.1.3

05/23/1989

RPI 970

Deferimento

#9.1

03/14/1989

RPI 960

6.2

06/28/1988

RPI 923

Solicitação de exame técnico

#4.1

03/18/1986

RPI 804

Publicação do pedido de patente

#3.1

10/09/1984

RPI 729

Pedido de patente depositado

#2.1

05/08/1984

RPI 707

Anuidade - prazo legal encerrado

#18.2

06/06/1995

RPI 1279

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