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Official data from INPI

SISTEMA RETARTADOR DO TIPO DE ALIVIO DE COMPRESSAO DE GAS

ConcedidaInvention Patent

Application data

Number

PI8207445

Type

Invention Patent

Filing

12/24/1981

Publication

10/18/1983

Progress at the INPI

  1. Filing12/24/81
  2. Publication10/18/83
  3. Examination11/12/85
  4. Allowance03/01/88
  5. Grant09/27/88
  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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

JACOBS MFG CO [US]

Inventors

C. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

06/21/1988

RPI 922

Deferimento

#9.1

03/01/1988

RPI 906

Exigência - art. 36 da LPI

#6.1

09/09/1986

RPI 829

Solicitação de exame técnico

#4.1

11/12/1985

RPI 786

Publicação do pedido de patente

#3.1

10/18/1983

RPI 678

Pedido de patente depositado

#2.1

02/16/1983

RPI 643

Carta-patente expirada

#21.1

Patente extinta em 22/12/97

08/19/2008

RPI 1963

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