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Official data from INPI

MOTOR DE COMBUSTÃO INTERNA DE DOIS TEMPOS.

ConcedidaInvention Patent

Application data

Number

PI8104978

Type

Invention Patent

Filing

07/31/1981

Publication

04/20/1982

Progress at the INPI

  1. Filing07/31/81
  2. Publication04/20/82
  3. Examination09/21/82
  4. Allowance02/14/84
  5. Grant08/28/84
  6. Expired11/19/96

The letters patent expired on 11/19/1996: 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: 08/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. S. (pessoa física)

DE

Inventors

S. F. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 30 29 287.6 · 08/01/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Exigência - art. 36 da LPI

#6.1

09/13/1983

RPI 673

Solicitação de exame técnico

#4.1

09/21/1982

RPI 622

Publicação do pedido de patente

#3.1

04/20/1982

RPI 600

Carta-patente expirada

#21.1

11/19/1996

RPI 1355

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