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Official data from INPI

PROCESSO, CORPO FEITO DE UM MATERIAL SÓLIDO E APARELHO PARA A PURIFICAÇÃO DE FLUIDOS SELECIONADOS DO GRUPO CONSISTINDO DE ÁGUA, FLUIDOS AQUOSOS E COMBUSTÍVEIS LÍQUIDOS

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9004054

Type

Invention Patent

Filing

08/10/1990

Publication

09/03/1991
View on INPI

Progress at the INPI

  1. Filing08/10/90
  2. Publication09/03/91
  3. Examination04/12/94
  4. Allowance05/26/98
  5. Grant11/24/98
  6. Expired01/29/13

The letters patent expired on 01/29/2013: 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: 01/29/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. G. (pessoa física)

US

Inventors

L. G. (pessoa física)

US

Technical data

IPC Classification

B01D 15/00C02F 5/00

Priority claims

US

468,661 · 01/23/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/08/2010

01/29/2013

RPI 2195

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

05/26/1998

RPI 1431

Exigência - art. 36 da LPI

#6.1

08/26/1997

RPI 1395

Exigência - art. 36 da LPI

#6.1

04/09/1996

RPI 1323

Solicitação de exame técnico

#4.1

04/12/1994

RPI 1219

Publicação do pedido de patente

#3.1

09/03/1991

RPI 1083

Pedido de patente depositado

#2.1

02/19/1991

RPI 1055

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