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Official data from INPI

COMPOSIÇÃO LÍQUIDA DE LIMPEZA POR ESFREGA.

DeferidaInvention Patent

Application data

Number

PI8304499

Type

Invention Patent

Filing

08/19/1983

Publication

04/03/1984

Progress at the INPI

  1. Filing08/19/83
  2. Publication04/03/84
  3. Examination05/13/86
  4. Allowance10/03/89
  5. Grant03/20/90
  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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Unilever N.V

NL

See this company's full portfolio

Inventors

J. H. (pessoa física)

GB

J. B. (pessoa física)

GB

M. S. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8223997 · 08/20/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/03/1989

RPI 989

Exigência - art. 36 da LPI

#6.1

03/28/1989

RPI 962

Exigência - art. 36 da LPI

#6.1

06/28/1988

RPI 923

6.2

09/22/1987

RPI 883

Solicitação de exame técnico

#4.1

05/13/1986

RPI 812

Publicação do pedido de patente

#3.1

04/03/1984

RPI 702

Pedido de patente depositado

#2.1

10/25/1983

RPI 679

Carta-patente expirada

#21.1

Patente extinta em 19/08/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

03/20/1990

RPI 1010

Notificação para pagamento de retribuição

#13.1

02/01/1990

RPI 1004

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