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Official data from INPI

SENSOR PIEZOELÉTRICO

Em AnáliseInvention Patent

Application data

Number

PI8503763

Type

Invention Patent

Filing

08/06/1985

Publication

03/17/1987

Progress at the INPI

  1. Filing08/06/85
  2. Publication03/17/87
  3. Examination05/30/89
  4. Allowance10/26/93
  5. Grant08/30/94
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cerâmica e Velas de Ignição NGK do Brasil Ltda

SP, BR

Cerâmica e Velas de Ignição Ngk do Brasil S/A

SP, BR

See this company's full portfolio

Inventors

M. Y. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/30/1989

RPI 971

Publicação do pedido de patente

#3.1

03/17/1987

RPI 856

Pedido de patente depositado

#2.1

02/24/1987

RPI 853

Pedido de patente depositado

#2.1

10/15/1985

RPI 782

Carta-patente expirada

#21.1

Patente extinta em 06/08/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

08/30/1994

RPI 1239

Notificação para pagamento de retribuição

#13.1

03/15/1994

RPI 1215

Deferimento

#9.1

10/26/1993

RPI 1195

Exigência - art. 36 da LPI

#6.1

06/15/1993

RPI 1176

14.4

04/06/1993

RPI 1166

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