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Official data from INPI

MECANISMO DE DIREÇÃO

ConcedidaInvention Patent

Application data

Number

PI8304176

Type

Invention Patent

Filing

08/04/1983

Publication

03/13/1984

Progress at the INPI

  1. Filing08/04/83
  2. Publication03/13/84
  3. Examination05/22/84
  4. Allowance06/09/87
  5. Grant11/24/87
  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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TRW Inc

US

See this company's full portfolio

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

US

405.705 · 08/05/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/24/1987

RPI 892

Notificação para pagamento de retribuição

#13.1

09/29/1987

RPI 884

Deferimento

#9.1

06/09/1987

RPI 868

Exigência - art. 36 da LPI

#6.1

04/01/1986

RPI 806

Pedido de certificado de adição de invenção

#5.1

10/16/1984

RPI 730

Solicitação de exame técnico

#4.1

05/22/1984

RPI 709

Publicação do pedido de patente

#3.1

03/13/1984

RPI 699

Pedido de patente depositado

#2.1

10/11/1983

RPI 677

Carta-patente expirada

#21.1

Patente extinta em 04/08/98

07/01/2008

RPI 1956

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