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Official data from INPI

PROCESSO DE FABRICAÇÃO DE ANEL DE SEGMENTO DE CERÂMICA PARA PISTÃO

PublicadaInvention Patent
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Application data

Number

PI8703620

Type

Invention Patent

Filing

06/25/1987

Publication

01/24/1989
View on INPI

Progress at the INPI

  1. Filing06/25/87
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. In force

The application was filed at the INPI on 06/25/1987. It awaits formal examination and publication in the RPI gazette.

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Latest action published by the INPI: 01/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cerâmica e Velas de Ignição NGK do Brasil S/A

SP, BR

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Inventors

M. Y. (pessoa física)

BR

Technical data

IPC Classification

F16J 9/28

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/24/1989

RPI 953

Pedido de patente depositado

#2.1

12/06/1988

RPI 946

Pedido de patente depositado

#2.1

10/20/1987

RPI 887

Retificação

#15.3

08/27/1991

RPI 1082

Pedido de certificado de adição de invenção

#5.1

03/19/1991

RPI 1059

Solicitação de exame técnico

#4.1

10/30/1990

RPI 1039

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