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Official data from INPI

SISTEMA PARA ALIMENTAR E AQUECER COMBUSTÍVEIS E PARA CONTROLAR A ALIMENTAÇÃO DE COMBUSTÍVEIS A MOTORES DIESEL

ConcedidaInvention Patent

Application data

Number

PI8501880

Type

Invention Patent

Filing

04/19/1985

Publication

11/25/1986

Progress at the INPI

  1. Filing04/19/85
  2. Publication11/25/86
  3. Examination02/03/87
  4. Allowance03/28/89
  5. Grant09/26/89
  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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Petróleo Brasileiro S/A - Petrobrás

RJ, BR

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Inventors

D. D. (pessoa física)

BR

E. W. (pessoa física)

BR

O. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

07/18/1989

RPI 978

Deferimento

#9.1

03/28/1989

RPI 962

Solicitação de exame técnico

#4.1

02/03/1987

RPI 850

Publicação do pedido de patente

#3.1

11/25/1986

RPI 840

Pedido de patente depositado

#2.1

06/03/1986

RPI 815

Carta-patente expirada

#21.1

Patente extinta em 19/04/2000

07/15/2008

RPI 1958

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