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Official data from INPI

COMPOSIÇÃO DE BRANQUEAMENTO LÍQUIDA, COMPOSIÇÃO DETERGENTE DE BRANQUEAMENNTO LÍQUIDA E PROCESSO DE PREPARAÇÃO DAS MESMAS.

Em AnáliseInvention Patent

Application data

Number

PI8203933

Type

Invention Patent

Filing

07/06/1982

Publication

06/28/1983

Progress at the INPI

  1. Filing07/06/82
  2. Publication06/28/83
  3. Examination04/30/85
  4. Allowance10/26/93
  5. Grant05/31/94
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 04/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Unilever N.V.

NL

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Inventors

D. S. (pessoa física)

GB

J. W. (pessoa física)

GB

R. C. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8120892 · 07/07/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/30/1985

RPI 758

Publicação do pedido de patente

#3.1

06/28/1983

RPI 662

Pedido de patente depositado

#2.1

08/17/1982

RPI 617

Carta-patente expirada

#21.1

Patente extinta em 06/07/97

07/01/2008

RPI 1956

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

10/26/1993

RPI 1195

Exigência - art. 36 da LPI

#6.1

01/28/1992

RPI 1104

Exigência - art. 36 da LPI

#6.1

06/18/1991

RPI 1072

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