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Official data from INPI

COMPOSIÇÃO DO REVESTIMENTO METÁLICO DA CERÂMICA DE NITRETO DE SILICIO METALIZADA E PROCESSO DE PRODUÇÃO DE CERÂMICA DE NITRETO DE SILICIO COM REVESTIMENTO METÁLICO.

Em ExigênciaInvention Patent
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Application data

Number

PI8406423

Type

Invention Patent

Filing

12/11/1984

Publication

07/01/1986
View on INPI

Progress at the INPI

  1. Filing12/11/84
  2. Publication07/01/86
  3. Examination04/12/88
  4. Allowance
  5. Grant
  6. In force

Published on 07/01/1986, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cerâmica e Velas de Ignição NGK do Brasil Ltda

SP, BR

See this company's full portfolio

Inventors

M. Y. (pessoa física)

BR

Technical data

IPC Classification

C04B 35/58C04B 35/64C04B 41/51

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

10/03/1989

RPI 989

Exigência - art. 36 da LPI

#6.1

05/23/1989

RPI 970

Solicitação de exame técnico

#4.1

04/12/1988

RPI 912

Publicação do pedido de patente

#3.1

07/01/1986

RPI 819

Pedido de patente depositado

#2.1

03/05/1985

RPI 750

Retificação

#15.3

07/26/1994

RPI 1234

14.4

04/27/1993

RPI 1169

Deferimento

#9.1

01/19/1993

RPI 1155

Exigência - art. 36 da LPI

#6.1

05/19/1992

RPI 1120

Exigência - art. 36 da LPI

#6.1

10/15/1991

RPI 1089

Exigência - art. 36 da LPI

#6.1

03/05/1991

RPI 1057

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