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Official data from INPI

PROCESSO PARA FABRICAR BETA"-ALUMINA

Em AnáliseInvention Patent
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Application data

Number

PI8602409

Type

Invention Patent

Filing

05/27/1986

Publication

01/21/1987
View on INPI

Progress at the INPI

  1. Filing05/27/86
  2. Publication01/21/87
  3. Examination03/21/89
  4. Allowance11/05/91
  5. Grant08/25/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 03/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. A. (pessoa física)

LU

Inventors

A. K. (pessoa física)

ZA

A. Z. (pessoa física)

AZ

J. D. (pessoa física)

GB

P. B. (pessoa física)

GB

Technical data

IPC Classification

C01F 7/02

Priority claims

GB

8513196 · 05/24/1985

GB

8525477 · 10/16/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/21/1989

RPI 961

Publicação do pedido de patente

#3.1

01/21/1987

RPI 848

Pedido de patente depositado

#2.1

11/11/1986

RPI 838

Carta-patente expirada

#21.1

Patente extinta em 27/05/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

08/25/1992

RPI 1134

Notificação para pagamento de retribuição

#13.1

03/17/1992

RPI 1111

Deferimento

#9.1

11/05/1991

RPI 1092

Exigência - art. 36 da LPI

#6.1

03/26/1991

RPI 1060

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