(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

DISPOSITIVO DE FILTRAGEM PARA O TRATAMENTO DE ÁGUA PARA TORNÁ-LA POTÁVEL

Arquivada/ExtintaInvention Patent

Application data

Number

PI8904868

Type

Invention Patent

Filing

09/26/1989

Publication

03/26/1991

Progress at the INPI

  1. Filing09/26/89
  2. Publication03/26/91
  3. Examination09/10/91
  4. Allowance04/09/96
  5. Grant03/25/97
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 12/22/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Biofil Limited

GB

Inventors

J. S. (pessoa física)

GB

M. T. (pessoa física)

GB

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/09/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

03/25/1997

RPI 1373

Deferimento

#9.1

04/09/1996

RPI 1323

Exigência - art. 36 da LPI

#6.1

09/05/1995

RPI 1292

Solicitação de exame técnico

#4.1

09/10/1991

RPI 1084

Publicação do pedido de patente

#3.1

03/26/1991

RPI 1060

Pedido de patente depositado

#2.1

05/15/1990

RPI 1018

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.