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Official data from INPI

DISPOSIÇÃO INTRODUZIDA EM SENSOR DE OXIGÊNIO.

Em AnáliseUtility Model

Application data

Number

MU6500997

Type

Utility Model

Filing

07/17/1985

Publication

02/24/1987

Progress at the INPI

  1. Filing07/17/85
  2. Publication02/24/87
  3. Examination02/14/89
  4. Allowance10/09/90
  5. Grant05/28/91
  6. Expired08/15/95

The letters patent expired on 08/15/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 02/14/1989. 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

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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

02/14/1989

RPI 956

Publicação do pedido de patente

#3.1

02/24/1987

RPI 853

Pedido de patente depositado

#2.1

10/01/1985

RPI 780

Carta-patente expirada

#21.1

08/15/1995

RPI 1289

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

01/22/1991

RPI 1051

Deferimento

#9.1

10/09/1990

RPI 1036

Exigência - art. 36 da LPI

#6.1

04/03/1990

RPI 1012

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