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Official data from INPI

MÁQUINA DE COMBUSTÃO INTERNA, COMPRESSORA DE AR, COM IGNIÇÃO INDEPENDENTE

ConcedidaInvention Patent

Application data

Number

PI8306933

Type

Invention Patent

Filing

12/09/1983

Publication

07/24/1984

Progress at the INPI

  1. Filing12/09/83
  2. Publication07/24/84
  3. Examination02/05/85
  4. Allowance04/15/86
  5. Grant12/30/86
  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: 12/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. A. (pessoa física)

DE

See this company's full portfolio

Inventors

C. F. (pessoa física)

H. W. (pessoa física)

M. R. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 32 45 780.4 · 12/10/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/30/1986

RPI 845

Notificação para pagamento de retribuição

#13.1

08/12/1986

RPI 825

Deferimento

#9.1

04/15/1986

RPI 808

Exigência - art. 36 da LPI

#6.1

07/30/1985

RPI 771

Solicitação de exame técnico

#4.1

02/05/1985

RPI 746

Publicação do pedido de patente

#3.1

07/24/1984

RPI 718

Pedido de patente depositado

#2.1

02/28/1984

RPI 697

Carta-patente expirada

#21.1

Patente extinta em 09/12/98

07/01/2008

RPI 1956

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