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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM POLÍMERO, E, PROCESSO PARA A PREPARAÇÃO DE UM ÁCIDO GRAXO DIMERIZADO.

PublicadaInvention Patent

Application data

Number

PI8801419

Type

Invention Patent

Filing

03/29/1988

Publication

11/01/1988

Progress at the INPI

  1. Filing03/29/88
  2. Publication11/01/88
  3. Examination
  4. Allowance06/16/98
  5. Grant10/27/98
  6. Expired12/11/12

The letters patent expired on 12/11/2012: 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: 11/01/1988. 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. V. (pessoa física)

NL

K. H. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

NL

8700862 · 04/13/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/01/1988

RPI 941

Pedido de patente depositado

#2.1

07/26/1988

RPI 927

Carta-patente expirada

#21.1

Patente extinta em 27/10/2008

12/11/2012

RPI 2188

Concessão da patente

#16.1

10/27/1998

RPI 1451

Deferimento

#9.1

DEFERIDO DE ACORDO COM O ART. 229 DA LEI 9279 DE 14/05/96.

06/16/1998

RPI 1434

Exigência - art. 36 da LPI

#6.1

02/21/1995

RPI 1264

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