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Official data from INPI

FORMA DE POPA DE UM NAVIO MONO-HELICE TENDO UM BULBO DE POPA

ConcedidaInvention Patent

Application data

Number

PI8403379

Type

Invention Patent

Filing

07/06/1984

Publication

-

Progress at the INPI

  1. Filing07/06/84
  2. Publication
  3. Examination07/08/86
  4. Allowance06/28/88
  5. Grant04/25/89
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ISHIKAWAJIMA BRASIL [BR]

Inventors

H. N. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/25/1989

RPI 966

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Deferimento

#9.1

06/28/1988

RPI 923

Retificação

#15.6

11/24/1987

RPI 892

Alteração de numeração

#15.1

09/29/1987

RPI 884

Pedido de certificado de adição de invenção

#5.1

11/18/1986

RPI 839

Solicitação de exame técnico

#4.1

07/08/1986

RPI 820

Pedido de patente depositado

#2.1

09/11/1984

RPI 725

Carta-patente expirada

#21.1

Patente extinta em 06/07/99

08/19/2008

RPI 1963

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