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Official data from INPI

SISTEMA DE IGNICAO

Em AnáliseInvention Patent

Application data

Number

PI8301218

Type

Invention Patent

Filing

05/27/1982

Publication

06/12/1984

Progress at the INPI

  1. Filing05/27/82
  2. Publication06/12/84
  3. Examination09/25/84
  4. Allowance07/08/86
  5. Grant04/28/87
  6. Terminated10/10/89

The patent was granted on 04/28/1987 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: 10/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TEXACO DEVELOPMENT CORP [US]

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Inventors

C. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/10/1989

RPI 990

Concessão da patente

#16.1

04/28/1987

RPI 862

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Republicação - classificação IPC

#15.11

10/29/1985

RPI 784

Exigência - art. 36 da LPI

#6.1

10/08/1985

RPI 781

Solicitação de exame técnico

#4.1

09/25/1984

RPI 727

Publicação do pedido de patente

#3.1

06/12/1984

RPI 712

Pedido de patente depositado

#2.1

04/26/1983

RPI 653

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