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Official data from INPI

DISPOSITIVO PARA SEPARAÇÃO DE LÍQUIDOS DE DENSIDADES DIFERENTES

Em AnáliseInvention Patent

Application data

Number

PI8505729

Type

Invention Patent

Filing

11/14/1985

Publication

06/09/1987

Progress at the INPI

  1. Filing11/14/85
  2. Publication06/09/87
  3. Examination08/30/88
  4. Allowance01/19/93
  5. Grant08/31/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Giusti & Cia Ltda

SP, BR

Inventors

J. G. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/30/1988

RPI 932

Publicação do pedido de patente

#3.1

06/09/1987

RPI 868

Pedido de patente depositado

#2.1

01/28/1986

RPI 797

Carta-patente expirada

#21.1

Patente extinta em 14/11/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

05/04/1993

RPI 1170

Deferimento

#9.1

01/19/1993

RPI 1155

Exigência - art. 36 da LPI

#6.1

05/19/1992

RPI 1120

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