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Official data from INPI

MURO GUIA FLUTUANTE PARA ACESSO À ECLUSAS DE NAVEGAÇÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906024

Type

Invention Patent

Filing

11/17/1989

Publication

05/21/1991

Progress at the INPI

  1. Filing11/17/89
  2. Publication05/21/91
  3. Examination02/09/93
  4. Allowance03/08/94
  5. Grant11/29/94
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Internave Engenharia S/C Ltda

SP, BR

Inventors

F. A. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 17/11/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

06/21/1994

RPI 1229

Deferimento

#9.1

03/08/1994

RPI 1214

Solicitação de exame técnico

#4.1

02/09/1993

RPI 1158

14.7

12/03/1991

RPI 1096

Publicação do pedido de patente

#3.1

05/21/1991

RPI 1068

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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