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Official data from INPI

COMPOSIÇÃO DE LIMPEZA, LÍQUIDA, SUBSTANCIALMENTE NÃO AQUOSA, COMPREENDENDO PARTÍCULAS SÓLIDAS DISPERSAS NA FASE LÍQUIDA E UM DESFLOCULANTE

PublicadaInvention Patent

Application data

Number

PI8902008

Type

Invention Patent

Filing

04/28/1989

Publication

12/05/1989

Progress at the INPI

  1. Filing04/28/89
  2. Publication12/05/89
  3. Examination11/05/91
  4. Allowance03/26/96
  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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Unilever N.V

NL

See this company's full portfolio

Inventors

A. V. (pessoa física)

NL

N. L. (pessoa física)

NL

P. H. (pessoa física)

NL

P. V. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

GB

8810191.0 · 04/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/05/1989

RPI 998

Pedido de patente depositado

#2.1

06/13/1989

RPI 973

Carta-patente expirada

#21.1

Patente extinta em 28/04/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

03/25/1997

RPI 1373

Deferimento

#9.1

03/26/1996

RPI 1321

Exigência - art. 36 da LPI

#6.1

01/31/1995

RPI 1261

Solicitação de exame técnico

#4.1

11/05/1991

RPI 1092

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