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Official data from INPI

MÉTODOS DE CLARIFICAÇÃO E RETIRADA DE ÁGUA DE ÁGUA RESIDUAL INDUSTRIAL, PARA REMOVER ÓLEO EMULSIFICADO DE ÁGUA RESIDUAL INDUSTRIAL E DE RETIDA DE ÁGUA DE LAMA

ArquivadaInvention PatentPCT · US2000020964

Application data

Number

PI0013856

Type

Invention Patent

Filing

08/01/2000

Publication

05/14/2002

PCT

US2000020964

Progress at the INPI

  1. Filing08/01/00
  2. Publication05/14/02
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 08/01/2000 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/13/2005. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nalco Chemical Company

US

See this company's full portfolio

Inventors

C. M. (pessoa física)

US

E. M. (pessoa física)

NL

J. S. (pessoa física)

US

J. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

09/392172 · 09/08/1999

Abstract

"MÉTODOS DE CLARIFICAÇÃO E RETIRADA DE ÁGUA DE ÁGUA RESIDUAL INDUSTRIAL PARA REMOVER ÓLEO EMULSIFICADO DE ÁGUA RESIDUAL INDUSTRIAL E DE RETIRADA DE ÁGUA DE LAMA". Esta invenção é dirigida a um método de clarificar e retirar água da água residual industrial usando polímeros de dispersão aniônica e não iônica.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento definitivo - Art. 33 da LPI

#11.1.1

12/13/2005

RPI 1823

Arquivamento - Art. 33 da LPI

#11.1

09/13/2005

RPI 1810

Notificação de entrada na fase nacional - PCT

#1.3

05/14/2002

RPI 1636

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