Official data from INPI

APARELHO PARA PURIFICAÇÃO DE LÍQUIDO, EM PARTICULAR ÁGUA SERVIDA.

Arquivada/ExtintaInvention Patent

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Application data

Number

PI9103859

Type

Invention Patent

Filing

09/06/1991

Publication

05/26/1992

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Progress at the INPI

Filing09/06/91
Publication05/26/92
Examination04/26/94
Allowance12/30/97
Grant09/29/98
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

DHV Water B.V.

Inventors

J. D. (pessoa física)

Technical data

IPC Classification

C02F 1/58 C02F 1/72

Priority claims

9001974 · 09/07/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinte em 06/09/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

09/29/1998

RPI 1449

9.1.4

01/06/1998

RPI 1411

Deferimento

#9.1

12/30/1997

RPI 1410

Exigência - art. 36 da LPI

#6.1

03/18/1997

RPI 1372

Solicitação de exame técnico

#4.1

04/26/1994

RPI 1221

Publicação do pedido de patente

#3.1

05/26/1992

RPI 1121

Pedido de patente depositado

#2.1

10/15/1991

RPI 1089

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