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Official data from INPI

cerãmica de alta tenacidade

ConcedidaInvention Patent
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Application data

Number

PI8303592

Type

Invention Patent

Filing

06/30/1983

Publication

11/08/1983
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Progress at the INPI

  1. Filing06/30/83
  2. Publication11/08/83
  3. Examination02/21/84
  4. Allowance10/27/87
  5. Grant06/28/88
  6. Terminated05/02/95

The patent was granted on 06/28/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cerâmica e Velas de Ignição NGK do Brasil Ltda

SP, BR

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Inventors

Y. M. (pessoa física)

Technical data

IPC Classification

C04B 35/48

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

10/27/1987

RPI 888

Exigência - art. 36 da LPI

#6.1

06/09/1987

RPI 868

Exigência - art. 36 da LPI

#6.1

05/13/1986

RPI 812

Conhecimento de parecer técnico

#7.1

06/25/1985

RPI 766

Solicitação de exame técnico

#4.1

02/21/1984

RPI 696

Publicação antecipada

#3.2

11/08/1983

RPI 681

Pedido de patente depositado

#2.1

08/16/1983

RPI 669

Anuidade - prazo legal encerrado

#18.2

05/02/1995

RPI 1274

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