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Official data from INPI

SISTEMA PARA COMBUSTÍVEL PARA UM MOTOR DE IGNIÇÃO POR COMPRESSÃO.

ConcedidaInvention Patent

Application data

Number

PI8204303

Type

Invention Patent

Filing

07/23/1982

Publication

07/19/1983

Progress at the INPI

  1. Filing07/23/82
  2. Publication07/19/83
  3. Examination07/02/85
  4. Allowance04/22/86
  5. Grant11/25/86
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 11/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Lucas Industries PLC

GB

See this company's full portfolio

Inventors

D. M. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8122968 · 07/24/1981

GB

8208400 · 03/23/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/25/1986

RPI 840

Notificação para pagamento de retribuição

#13.1

08/26/1986

RPI 827

Deferimento

#9.1

04/22/1986

RPI 809

Solicitação de exame técnico

#4.1

07/02/1985

RPI 767

Publicação do pedido de patente

#3.1

07/19/1983

RPI 665

Pedido de patente depositado

#2.1

09/08/1982

RPI 620

Carta-patente expirada

#21.1

Patente extinta em 23/07/97

07/01/2008

RPI 1956

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