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Official data from INPI

SISTEMA DE TAMPONAMENTO E FIXAÇÃO DE UM BALÃO EM UM ACUMULADOR HIDROPNEUMÁTICO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9001362

Type

Invention Patent

Filing

03/23/1990

Publication

10/22/1991

Progress at the INPI

  1. Filing03/23/90
  2. Publication10/22/91
  3. Examination12/07/93
  4. Allowance09/27/94
  5. Grant05/30/95
  6. Expired05/18/10

The letters patent expired on 05/18/2010: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/18/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CBV Indústria Mecânica S A

RJ, BR

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Inventors

E. F. (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 23/03/2005

05/18/2010

RPI 2054

Concessão da patente

#16.1

05/30/1995

RPI 1278

Notificação para pagamento de retribuição

#13.1

01/31/1995

RPI 1261

Deferimento

#9.1

09/27/1994

RPI 1243

Solicitação de exame técnico

#4.1

12/07/1993

RPI 1201

Publicação do pedido de patente

#3.1

10/22/1991

RPI 1090

Pedido de patente depositado

#2.1

08/07/1990

RPI 1027

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