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Official data from INPI

SISTEMA LÍQUIDO QUE INCLUI UM MEIO LÍQUIDO E MISTURA ESPESSANTE

Prazo de SigiloInvention Patent

Application data

Number

PI8902682

Type

Invention Patent

Filing

06/07/1989

Publication

01/23/1990

Progress at the INPI

  1. Filing06/07/89
  2. Publication01/23/90
  3. Examination03/31/92
  4. Allowance03/28/00
  5. Grant07/11/00
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Unilever N.V

NL

See this company's full portfolio

Inventors

G. R. (pessoa física)

GB

Technical data

Priority claims

GB

8813552.0 · 06/08/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/18/1989

RPI 978

Carta-patente expirada

#21.1

Patente extinta em 11/07/2010

12/26/2012

RPI 2190

Concessão da patente

#16.1

07/11/2000

RPI 1540

Republicação - classificação IPC

#15.11

Alterada a Classificação para Int.Cl.6 C08L 33/04, C08L 5/06, C11D 3/00, A61K 7/16, B21H 1/28, C09D 7/00.

03/28/2000

RPI 1525

Deferimento

#9.1

03/28/2000

RPI 1525

Exigência - art. 36 da LPI

#6.1

06/01/1999

RPI 1482

Exigência - art. 36 da LPI

#6.1

09/29/1998

RPI 1449

Solicitação de exame técnico

#4.1

03/31/1992

RPI 1113

Publicação do pedido de patente

#3.1

01/23/1990

RPI 1003

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