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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE HOMO- E COPOLÍMEROS DE PROPILENO CARBOXILADO, MISTURAS DE POLÍMEROS DE PROPILENO CARBOXILADO COM POLÍMEROS DE POLIAMIDA, E, PROCESSO PARA A PREPARAÇÃO DE IONÔMEROS.

PublicadaInvention Patent

Application data

Number

PI8806193

Type

Invention Patent

Filing

11/24/1988

Publication

08/15/1989

Progress at the INPI

  1. Filing11/24/88
  2. Publication08/15/89
  3. Examination08/27/91
  4. Allowance03/31/98
  5. Grant11/24/98
  6. Expired12/18/12

The letters patent expired on 12/18/2012: 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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Montell Technology Company B.V

NL

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

A. U. (pessoa física)

NL

Technical data

Priority claims

GB

8727775 · 11/27/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/15/1989

RPI 982

Pedido de patente depositado

#2.1

04/11/1989

RPI 964

Carta-patente expirada

#21.1

Patente extinta em 24/11/2008

12/18/2012

RPI 2189

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

Deferido de acordo com o artigo 229 da Lei nº 9279 de 14/05/1996.

03/31/1998

RPI 1423

Transferência deferida

#25.1

09/23/1997

RPI 1399

Exigência - art. 36 da LPI

#6.1

12/05/1995

RPI 1305

Exigência - art. 36 da LPI

#6.1

02/21/1995

RPI 1264

Solicitação de exame técnico

#4.1

08/27/1991

RPI 1082

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