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Official data from INPI

Combinação de hélices para uma unidade de hélice de navio direcionável.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101898

Type

Invention Patent

Filing

05/09/1991

Publication

12/17/1991

Progress at the INPI

  1. Filing05/09/91
  2. Publication12/17/91
  3. Examination05/25/93
  4. Allowance05/28/96
  5. Grant04/29/97
  6. Expired06/22/10

The letters patent expired on 06/22/2010: 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: 06/22/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ab Volvo Penta

SE

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Inventors

L. B. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

US

07/524,788 · 05/17/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/05/2006

06/22/2010

RPI 2059

Concessão da patente

#16.1

04/29/1997

RPI 1378

Deferimento

#9.1

05/28/1996

RPI 1330

Exigência - art. 36 da LPI

#6.1

07/26/1994

RPI 1234

Solicitação de exame técnico

#4.1

05/25/1993

RPI 1173

Publicação do pedido de patente

#3.1

12/17/1991

RPI 1098

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