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Official data from INPI

SISTEMA DE ESTERILIZAÇÃO DE LÍQUIDO , SISTEMA DE PURIFICAÇÃO DE LÍQUIDO , SISTEMA MODULAR DE PURIFICAÇÃO DE LÍQUIDO E MÉTODOS PARA PURIFICAÇÃO FLUIDOS

Em AnáliseInvention PatentPCT · US1987000929

Application data

Number

PI8707299

Type

Invention Patent

Filing

04/21/1987

Publication

06/14/1988

PCT

US1987000929

Progress at the INPI

  1. Filing04/21/87
  2. Publication06/14/88
  3. Examination09/13/88
  4. Allowance09/05/95
  5. Grant04/30/96
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Electrolux Water Systems, Inc.

US

PWT Partners, LP

US

Inventors

J. N. (pessoa física)

US

S. M. (pessoa física)

US

Technical data

Priority claims

US

861.569 · 05/09/1986

US

915.238 · 10/03/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/13/1988

RPI 934

Notificação de entrada na fase nacional - PCT

#1.3

06/14/1988

RPI 921

Carta-patente expirada

#21.1

Patente extinta em 21/04/2002

07/29/2008

RPI 1960

Transferência deferida

#25.1

Transferido de: Electrolux Water Systems, Inc

11/10/1998

RPI 1453

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

09/05/1995

RPI 1292

Exigência - art. 36 da LPI

#6.1

02/07/1995

RPI 1262

14.1

12/04/1990

RPI 1044

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