Official data from INPI

APARELHO PARA CLARIFICAR UM LÍQUIDO

Arquivada/ExtintaInvention Patent

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Application data

Number

PI9104143

Type

Invention Patent

Filing

09/26/1991

Publication

06/02/1992

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Progress at the INPI

Filing09/26/91
Publication06/02/92
Examination10/05/93
Allowance05/05/98
Grant11/24/98
Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Paul C. Broussard, Sr

Inventors

P. S. (pessoa física)

Technical data

IPC Classification

C02F 1/24 C02F 1/40

Priority claims

07/589,471 · 09/28/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/09/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

05/05/1998

RPI 1428

Solicitação de exame técnico

#4.1

10/05/1993

RPI 1192

Publicação do pedido de patente

#3.1

06/02/1992

RPI 1122

Pedido de patente depositado

#2.1

11/05/1991

RPI 1092

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