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Official data from INPI

PROCESSO PARA PRODUÇÃO DE GRÃOS DE ALUMINA MONOCRISTALINOS

Prazo de SigiloInvention Patent
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Application data

Number

PI8902159

Type

Invention Patent

Filing

05/09/1989

Publication

01/02/1990
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Progress at the INPI

  1. Filing05/09/89
  2. Publication01/02/90
  3. Abandoned05/21/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Japan Abrasive Co , Ltd (Nihon Kenmazai Kogyo Kabushiki Kaisha)

JP

Inventors

M. T. (pessoa física)

JP

M. N. (pessoa física)

JP

Y. O. (pessoa física)

JP

Technical data

IPC Classification

C01F 7/02C04B 35/10

Priority claims

JP

63-112233 · 05/09/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/04/1989

RPI 976

Republicação - classificação IPC

#15.11

04/23/1996

RPI 1325

Arquivamento - Art. 36 §1° da LPI

#11.2

04/09/1996

RPI 1323

Exigência - art. 36 da LPI

#6.1

07/25/1995

RPI 1286

Exigência - art. 36 da LPI

#6.1

02/14/1995

RPI 1263

Solicitação de exame técnico

#4.1

05/21/1991

RPI 1068

Publicação do pedido de patente

#3.1

01/02/1990

RPI 1000

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