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Official data from INPI

PROCESSO DE OBTENÇÃO DE TRIIDRÓXIDO DE ALUMÍNIO DE DIÂMETRO MÉDIO INFERIOR A 4 MÍCRONS, FIXADO PELA DEMANDA

ConcedidaInvention Patent

Application data

Number

PI8307582

Type

Invention Patent

Filing

10/18/1983

Publication

09/25/1984

Progress at the INPI

  1. Filing10/18/83
  2. Publication09/25/84
  3. Examination05/13/86
  4. Allowance11/08/88
  5. Grant09/26/89
  6. Terminated09/05/95

The patent was granted on 09/26/1989 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. P. (pessoa física)

FR

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Inventors

B. C. (pessoa física)

FR

J. M. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

82 17955 · 10/20/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

02/28/1989

RPI 958

Deferimento

#9.1

11/08/1988

RPI 942

Exigência - art. 36 da LPI

#6.1

04/05/1988

RPI 911

Solicitação de exame técnico

#4.1

05/13/1986

RPI 812

Notificação de entrada na fase nacional - PCT

#1.3

09/25/1984

RPI 727

Anuidade - prazo legal encerrado

#18.2

09/05/1995

RPI 1292

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